fix mouse clicks bleeding through overlay panel

docs/changelog.txt

@@ -57,6 +57,7 @@ Template for new versions:
 - `sort`: search and sort for the "choose unit to elevate to the barony" screen. units are sorted by the number of item preferences they have and the units are annotated with the items that they have preferences for
 
 ## Fixes
+- `sort`: fix mouse clicks falling through the squad assignment overlay panel when clicking on the panel but not on a clickable widget
 - `sort`: fix potential crash when removing jobs directly from the Tasks info screen
 
 ## Misc Improvements

plugins/lua/sort.lua

@@ -1179,7 +1179,8 @@ function SquadAssignmentOverlay:onInput(keys)
         -- if any click is made outside of our window, we may need to refresh our list
         self.dirty = true
     end
-    return SquadAssignmentOverlay.super.onInput(self, keys)
+    return SquadAssignmentOverlay.super.onInput(self, keys) or
+        (keys._MOUSE_L and self:getMouseFramePos())
 end
 
 function SquadAssignmentOverlay:onRenderFrame(dc, frame_rect)
@@ -1287,6 +1288,11 @@ function SquadAnnotationOverlay:init()
     end
 end
 
+function SquadAnnotationOverlay:onInput(keys)
+    return SquadAnnotationOverlay.super.onInput(self, keys) or
+        (keys._MOUSE_L and self:getMouseFramePos())
+end
+
 OVERLAY_WIDGETS = {
     squad_assignment=SquadAssignmentOverlay,
     squad_annotation=SquadAnnotationOverlay,