Fix file reloading not populating the history (#20156)

Closes #20111
Closes #20153

cc @mikayla-maki and @ConradIrwin 

Release Notes:

- Fixed undo stack corruption on external file changes
([#20111](#20111))
([#20153](#20153))

Co-authored-by: Antonio Scandurra <[email protected]>

crates/project/src/project.rs

@@ -2214,7 +2214,7 @@ impl Project {
         match event {
             BufferEvent::ReloadNeeded => {
                 if !self.is_via_collab() {
-                    self.reload_buffers([buffer.clone()].into_iter().collect(), false, cx)
+                    self.reload_buffers([buffer.clone()].into_iter().collect(), true, cx)
                         .detach_and_log_err(cx);
                 }
             }