Merge pull request #7929 from sophie-h/wip/sohpie-h/docs-rebuild-refcounts

docs: Add "check.rebuild_refcounts" message

docs/internals/frontends.rst

@@ -664,6 +664,7 @@ Operations
     - repository.check
     - check.verify_data
     - check.rebuild_manifest
+    - check.rebuild_refcounts
     - extract
 
       *info* is one string element, the name of the path currently extracted.