diff --git a/jenkins/Jenkinsfile.production-api-build b/jenkins/Jenkinsfile.production-api-build
index 459f4c6ed..83ec02e7c 100644
--- a/jenkins/Jenkinsfile.production-api-build
+++ b/jenkins/Jenkinsfile.production-api-build
@@ -43,8 +43,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh
diff --git a/jenkins/Jenkinsfile.production-api-deploy b/jenkins/Jenkinsfile.production-api-deploy
index e3efb6139..d9310fd1b 100644
--- a/jenkins/Jenkinsfile.production-api-deploy
+++ b/jenkins/Jenkinsfile.production-api-deploy
@@ -64,8 +64,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh
diff --git a/jenkins/Jenkinsfile.production-database-export b/jenkins/Jenkinsfile.production-database-export
index c9f89452b..2a54712bc 100644
--- a/jenkins/Jenkinsfile.production-database-export
+++ b/jenkins/Jenkinsfile.production-database-export
@@ -92,8 +92,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh
diff --git a/jenkins/Jenkinsfile.production-database-import b/jenkins/Jenkinsfile.production-database-import
index 6a62955fa..1e7d3c431 100644
--- a/jenkins/Jenkinsfile.production-database-import
+++ b/jenkins/Jenkinsfile.production-database-import
@@ -150,8 +150,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh
diff --git a/jenkins/Jenkinsfile.production-full-build-and-deploy b/jenkins/Jenkinsfile.production-full-build-and-deploy
index ad10f3536..e22ebc400 100644
--- a/jenkins/Jenkinsfile.production-full-build-and-deploy
+++ b/jenkins/Jenkinsfile.production-full-build-and-deploy
@@ -47,8 +47,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh
diff --git a/jenkins/Jenkinsfile.production-server-provision b/jenkins/Jenkinsfile.production-server-provision
index d1929c90c..98abf53f9 100644
--- a/jenkins/Jenkinsfile.production-server-provision
+++ b/jenkins/Jenkinsfile.production-server-provision
@@ -69,8 +69,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh
diff --git a/jenkins/Jenkinsfile.production-stdb-module-build b/jenkins/Jenkinsfile.production-stdb-module-build
index a3cb38daa..89bd11125 100644
--- a/jenkins/Jenkinsfile.production-stdb-module-build
+++ b/jenkins/Jenkinsfile.production-stdb-module-build
@@ -44,8 +44,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh
diff --git a/jenkins/Jenkinsfile.production-stdb-module-publish b/jenkins/Jenkinsfile.production-stdb-module-publish
index 39c0cc486..4465aea55 100644
--- a/jenkins/Jenkinsfile.production-stdb-module-publish
+++ b/jenkins/Jenkinsfile.production-stdb-module-publish
@@ -66,8 +66,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh
diff --git a/jenkins/Jenkinsfile.production-web-build b/jenkins/Jenkinsfile.production-web-build
index 86c623f8f..2e8d65a21 100644
--- a/jenkins/Jenkinsfile.production-web-build
+++ b/jenkins/Jenkinsfile.production-web-build
@@ -38,8 +38,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh
diff --git a/jenkins/Jenkinsfile.production-web-deploy b/jenkins/Jenkinsfile.production-web-deploy
index 0230921ae..8cb750b5e 100644
--- a/jenkins/Jenkinsfile.production-web-deploy
+++ b/jenkins/Jenkinsfile.production-web-deploy
@@ -63,8 +63,8 @@ pipeline {
           bash -lc '
             set -euo pipefail
             chmod +x scripts/jenkins-checkout-source.sh
-            SOURCE_BRANCH="${SOURCE_BRANCH}" \
-            COMMIT_HASH="${COMMIT_HASH}" \
+            SOURCE_BRANCH="${SOURCE_BRANCH:-master}" \
+            COMMIT_HASH="${COMMIT_HASH:-}" \
             GIT_REMOTE_URL="${GIT_REMOTE_URL}" \
             SOURCE_COMMIT_FILE=".jenkins-source-commit" \
             scripts/jenkins-checkout-source.sh