Revert "fix: ensure not filters are initialized correctly"

This reverts commit 0c0aa41.

Author: cdxker

clients/search-component/src/utils/hooks/chat-context.tsx

@@ -889,18 +889,18 @@ function ChatProvider({ children }: { children: React.ReactNode }) {
         filters.should == null
       ) {
         filters = null;
-      }
 
-      if (notFilter) {
-        if (filters == null || (filters as ChunkFilter).must_not == null) {
-          filters = { must_not: [] };
-        }
+        if (notFilter) {
+          if (filters == null) {
+            filters = { must_not: [] };
+          }
 
-        if (filters?.must_not) {
-          filters.must_not.push({
-            field: "group_ids",
-            match_any: groupIdsInChat,
-          });
+          if (filters?.must_not) {
+            filters.must_not.push({
+              field: "group_ids",
+              match_any: groupIdsInChat,
+            });
+          }
         }
       }