refactor and fixes for episode handling gav

ui/properties.py

@@ -119,6 +119,7 @@ class Sequence(PropertyGroup):
 
 
 class TaskStatus(PropertyGroup):
+    is_done : BoolProperty(default=False)
     __annotations__ = {}
 
 
@@ -267,7 +268,8 @@ class ImportShots(PropertyGroup):
 
 
 class UploadToTracker(PropertyGroup):
-    render_strips: BoolProperty(default=False)
+    render_strips: BoolProperty(default=False,
+        description='Render each selected shot strip to the Movie Path before uploading it as the preview')
     render_strip_template : StringProperty(
         name="Movie Path", default="//render/{strip}.{ext}")
 
@@ -749,7 +751,7 @@ class VSETB_PGT_strip_settings(PropertyGroup):
         channel = get_channel_name(strip)
 
         if channel == 'Sequences':
-            data = parse(project.sequence_template, strip.name)
+            data = parse(project.sequence_template, strip.name) or {}
             #data['index'] = int(data['index'])
             #data['sequence'] = strip.name
             data['strip'] = strip.name
@@ -758,10 +760,10 @@ class VSETB_PGT_strip_settings(PropertyGroup):
         elif channel == "Shots":
             data = {}
             if sequence_strip_name := get_strip_sequence_name(strip):
-                data = parse(project.sequence_template, sequence_strip_name)
+                data = parse(project.sequence_template, sequence_strip_name) or {}
                 data['sequence_strip'] = sequence_strip_name
 
-            data.update(parse(project.shot_template, strip.name))
+            data.update(parse(project.shot_template, strip.name) or {})
             #data['index'] = int(data['index'])
 
             data['strip'] = strip.name