git: Fix branch diff not updating when committing or changing branches (#48388)

Cole Miller created 2 months ago

This regressed in #47619 -- previously we would throw away and reopen
the diffs used to construct the branch diff pretty eagerly, and as a
result the branch diff would update itself when you committed or
switched branches. We inadvertently lost that when we switched to
retaining those diffs in the git store.

Release Notes:

- N/A

Change summary

crates/project/src/git_store/branch_diff.rs | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Detailed changes

crates/project/src/git_store/branch_diff.rs

@@ -70,7 +70,7 @@ impl BranchDiff {
                     }
                     GitStoreEvent::RepositoryUpdated(
                         event_repo_id,
-                        RepositoryEvent::StatusesChanged,
+                        RepositoryEvent::StatusesChanged | RepositoryEvent::BranchChanged,
                         _,
                     ) => this
                         .repo