core: fix changing profile of prepared chats losing chat items (#6843)

src/Simplex/Chat/Store/Direct.hs

@@ -429,6 +429,14 @@ updatePreparedContactUser
             WHERE contact_profile_id = ?
           |]
           (newUserId, currentTs, profileId)
+        DB.execute
+          db
+          [sql|
+            UPDATE chat_items
+            SET user_id = ?, updated_at = ?
+            WHERE contact_id = ?
+          |]
+          (newUserId, currentTs, contactId)
         safeDeleteLDN db user oldLDN
       getContact db vr newUser contactId
 

src/Simplex/Chat/Store/Groups.hs

@@ -687,6 +687,14 @@ updatePreparedGroupUser db vr user gInfo@GroupInfo {groupId, membership} hostMem
               WHERE group_profile_id IN (SELECT group_profile_id FROM groups WHERE group_id = ?)
             |]
             (newUserId, currentTs, groupId)
+          DB.execute
+            db
+            [sql|
+              UPDATE chat_items
+              SET user_id = ?, updated_at = ?
+              WHERE group_id = ?
+            |]
+            (newUserId, currentTs, groupId)
           safeDeleteLDN db user oldGroupLDN
     updateMembership GroupMember {groupMemberId = membershipId} currentTs =
       DB.execute

src/Simplex/Chat/Store/SQLite/Migrations/chat_query_plans.txt

@@ -446,6 +446,14 @@ Query:
 Plan:
 SEARCH chat_items USING INTEGER PRIMARY KEY (rowid=?)
 
+Query: 
+              UPDATE chat_items
+              SET user_id = ?, updated_at = ?
+              WHERE group_id = ?
+            
+Plan:
+SEARCH chat_items USING COVERING INDEX idx_chat_items_group_id (group_id=?)
+
 Query: 
               UPDATE contact_profiles
               SET display_name = ?,
@@ -1063,6 +1071,14 @@ SEARCH m USING INTEGER PRIMARY KEY (rowid=?) LEFT-JOIN
 SEARCH g USING INTEGER PRIMARY KEY (rowid=?) LEFT-JOIN
 SEARCH h USING INDEX idx_sent_probe_hashes_sent_probe_id (sent_probe_id=?)
 
+Query: 
+            UPDATE chat_items
+            SET user_id = ?, updated_at = ?
+            WHERE contact_id = ?
+          
+Plan:
+SEARCH chat_items USING COVERING INDEX idx_chat_items_contact_id (contact_id=?)
+
 Query: 
             UPDATE chat_items SET item_status = ?, item_viewed = 1, updated_at = ?
             WHERE user_id = ? AND group_id = ? AND item_status = ? AND chat_item_id = ?