diff --git a/.gitea/workflows/test.yml b/.gitea/workflows/test.yml
index 495acba..8500031 100644
--- a/.gitea/workflows/test.yml
+++ b/.gitea/workflows/test.yml
@@ -1,15 +1,18 @@
-on: [push]
+on: [push, workflow_dispatch]
 
 jobs:
   build-images:
     runs-on: host-arch-x86_64
     steps:
+      - name: Debug print
+        run: echo '${{ toJson(gitea) }}'
+
       - name: Clone repository
         run: git clone --revision ${{ gitea.sha }} --depth 1 ${{ gitea.server_url }}/${{ gitea.repository }}
 
       - name: Build GCC container
         working-directory: test5
-        run: docker build . -f Dockerfile -t local/alpine-gcc:latest
+        run: docker build . -f Dockerfile -t local/alpine-gcc-${{gitea.ref_name}}:latest
 
   run-tests:
     runs-on: host-arch-x86_64
@@ -22,4 +25,4 @@ jobs:
       - run: ls -lh test5
 
       - name: Run tests
-        run: docker run -it --rm -v ./test5:/app local/alpine-gcc:latest
+        run: docker run -it --rm -v ./test5:/app local/alpine-gcc-${{gitea.ref_name}}:latest
diff --git a/f.c b/f.c
index b7d18a9..64d58e5 100644
--- a/f.c
+++ b/f.c
@@ -32,6 +32,7 @@ int f(void)
 	free(malloc(64));
 	free(malloc(96));
 	free(malloc(128));
+	free(malloc(256));
 
 	return 1;
 }