add newer syntax to detached HEAD check (#38879)

lib/ansible/modules/source_control/git.py

@@ -590,7 +590,7 @@ def is_local_branch(git_path, module, dest, branch):
 def is_not_a_branch(git_path, module, dest):
     branches = get_branches(git_path, module, dest)
     for branch in branches:
-        if branch.startswith('* ') and ('no branch' in branch or 'detached from' in branch):
+        if branch.startswith('* ') and ('no branch' in branch or 'detached from' in branch or 'detached at' in branch):
             return True
     return False
 

test/integration/targets/git/tasks/specific-revision.yml

@@ -42,6 +42,17 @@
     that:
       - 'git_result.stdout == "4e739a34719654db7b04896966e2354e1256ea5d"'
 
+- name: SPECIFIC-REVISION | update to HEAD from detached HEAD state
+  git:
+    repo: "{{ repo_dir }}/format1"
+    dest: "{{ checkout_dir }}"
+    version: HEAD
+  register: git_result
+
+- assert:
+    that:
+      - git_result is changed
+
 # Test a revision not available under refs/heads/ or refs/tags/
 
 - name: SPECIFIC-REVISION | attempt to get unavailable revision