Fixed search plugin crashing when enabling theme while serving

Author: squidfunk

material/plugins/search/plugin.py

@@ -47,6 +47,7 @@ def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
         # Initialize incremental builds
+        self.is_dirty = False
         self.is_dirtyreload = False
 
         # Initialize search index cache

src/plugins/search/plugin.py

@@ -47,6 +47,7 @@ def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
         # Initialize incremental builds
+        self.is_dirty = False
         self.is_dirtyreload = False
 
         # Initialize search index cache