Rigify: clear RigifyParameters properties when toggling legacy mode.

Registering and unregistering the class causes 2.8 to complain
about non-annotation properties, and this avoids the problem.
Plus, legacy and non-legacy shouldn't interact.

1 files changed, 13 insertions, 0 deletions

diff --git a/rigify/__init__.py b/rigify/__init__.py
index 3c0efdfd..7e0c8ada 100644
--- a/rigify/__init__.py
+++ b/rigify/__init__.py
@@ -72,6 +72,8 @@ class RigifyPreferences(AddonPreferences):
 
                 unregister()
 
+                clear_rigify_parameters()
+
                 globals().pop('utils')
                 globals().pop('rig_lists')
                 globals().pop('generate')
@@ -104,6 +106,8 @@ class RigifyPreferences(AddonPreferences):
 
             unregister()
 
+            clear_rigify_parameters()
+
             globals().pop('utils')
             globals().pop('rig_lists')
             globals().pop('generate')
@@ -217,6 +221,15 @@ class RigifyParameters(bpy.types.PropertyGroup):
     name: StringProperty()
 
 
+# Remember the initial property set
+RIGIFY_PARAMETERS_BASE_DIR = set(dir(RigifyParameters))
+
+def clear_rigify_parameters():
+    for name in list(dir(RigifyParameters)):
+        if name not in RIGIFY_PARAMETERS_BASE_DIR:
+            delattr(RigifyParameters, name)
+
+
 class RigifyArmatureLayer(bpy.types.PropertyGroup):
 
     def get_group(self):