diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 27edcb062..963a8e6cd 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -5,8 +5,9 @@ on:
     branches: ["main"]
   workflow_dispatch:
 
+# N6 (server-config ci/jobbstorm-2026-11-10 §4): en ny commit på samma PR/gren avbryter den inaktuella körningen.
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
+  group: ${{ gitea.workflow }}-${{ gitea.ref }}
   cancel-in-progress: true
 
 jobs:
diff --git a/.gitea/workflows/masterplan-lock.yml b/.gitea/workflows/masterplan-lock.yml
index 6565d8a59..713f68d76 100644
--- a/.gitea/workflows/masterplan-lock.yml
+++ b/.gitea/workflows/masterplan-lock.yml
@@ -8,12 +8,13 @@ name: masterplan-lock
 
 on:
   push:
-    branches: ["**"]
+    branches: [main]
   pull_request:
   workflow_dispatch:
 
+# N6 (server-config ci/jobbstorm-2026-11-10 §4): en ny commit på samma PR/gren avbryter den inaktuella körningen.
 concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.ref }}
+  group: ${{ gitea.workflow }}-${{ gitea.ref }}
   cancel-in-progress: true
 
 jobs:
diff --git a/.gitea/workflows/security.yml b/.gitea/workflows/security.yml
index 5ab24d3c3..f442d3979 100644
--- a/.gitea/workflows/security.yml
+++ b/.gitea/workflows/security.yml
@@ -27,8 +27,9 @@ on:
   schedule:
     - cron: "17 2 * * *"
 permissions: { contents: read }
+# N6 (server-config ci/jobbstorm-2026-11-10 §4): en ny commit på samma PR/gren avbryter den inaktuella körningen.
 concurrency:
-  group: security-${{ github.ref }}
+  group: ${{ gitea.workflow }}-${{ gitea.ref }}
   cancel-in-progress: true
 
 jobs: