Fixes for M-02 to M-14, G-01 to G-14, K-02 to K-04, X-04 to X-14, not yet reviewed

Committed before review so Windows and WSL builds can start.
Each fix was tested and mutation-checked here; the codex review
of each item is still to come, so tasks/BUGS.md stays unticked.

M-02 is mid-review: round 1 findings are fixed (apps/ely-mark/src/tally.rs).
K-01 stays deferred. The ElyMark window test mark-outside.sh failed
once at its crash-recovery step in the last run; not yet looked into.

apps/ely-tree/src/places.rs

@@ -94,12 +94,15 @@ impl Tree {
     }
 
     pub fn pick_place(&mut self, place: Place, cx: &mut Context<Self>) {
+        self.look = None;
         match &place {
             Place::Stash(oid) => self.pick_in(Whose::Stash, oid, cx),
             Place::Reflog(moved) => self.pick_in(Whose::Reflog, &moved.oid, cx),
             _ => {}
         }
-        self.picked_place = Some(place);
+        if let Some(opened) = self.active.and_then(|id| self.opened_mut(id)) {
+            opened.picked_place = Some(place);
+        }
         cx.notify();
     }