Collection Manager: Fix update loop. Task: T69577

Fixes the QCD header widget going into an infinite loop
when no objects are selected.

object_collection_manager/__init__.py

@@ -22,7 +22,7 @@ bl_info = {
     "name": "Collection Manager",
     "description": "Manage collections and their objects",
     "author": "Ryan Inch",
-    "version": (2,0,0),
+    "version": (2,0,1),
     "blender": (2, 80, 0),
     "location": "View3D - Object Mode (Shortcut - M)",
     "warning": '',  # used for warning icon and text in addons panel

object_collection_manager/qcd_operators.py

@@ -61,18 +61,19 @@ def get_move_active():
     if move_active not in get_move_selection():
         move_active = None
 
-    try:
-        move_active.name
-
-    except:
-        move_active = None
-        move_selection = []
-
-        # update header widget
-        cm = bpy.context.scene.collection_manager
-        cm.update_header.clear()
-        new_update_header = cm.update_header.add()
-        new_update_header.name = "updated"
+    if move_active:
+        try:
+            move_active.name
+
+        except:
+            move_active = None
+            move_selection = []
+
+            # update header widget
+            cm = bpy.context.scene.collection_manager
+            cm.update_header.clear()
+            new_update_header = cm.update_header.add()
+            new_update_header.name = "updated"
 
     return move_active