Reclaim drain owns its work: invalidation only bumps a generation, and a generation that moved aborts the tick's commit and its release.

src/shell/view/view.h

@@ -59,6 +59,9 @@ bool modeApplyInProgress();
 // (modeApplyInProgress), or if the project does not validate. A reapply (target ==
 // active) is never gated and never touches solo. `proj` == nullptr means the current
 // project, resolved ONCE and used for every call this apply makes.
+//
+// Either way — applied or refused — this drops the FX reclaimer's derived queue, which
+// is why callers may safely discard the return after mutating the model.
 bool applyMode(ViewModeModel& model, const std::string& targetModeId, ReaProject* proj);
 
 } // namespace reasampler