delete conversations cache on logout (#4997)

app/src/main/java/com/keylesspalace/tusky/db/DatabaseCleaner.kt

@@ -16,6 +16,7 @@
 package com.keylesspalace.tusky.db
 
 import androidx.room.withTransaction
+import com.keylesspalace.tusky.components.conversation.ConversationEntity
 import com.keylesspalace.tusky.db.entity.HomeTimelineEntity
 import com.keylesspalace.tusky.db.entity.NotificationEntity
 import com.keylesspalace.tusky.db.entity.NotificationReportEntity
@@ -49,7 +50,8 @@ class DatabaseCleaner @Inject constructor(
     }
 
     /**
-     * Deletes everything from the [HomeTimelineEntity], [TimelineStatusEntity], [TimelineAccountEntity], [NotificationEntity] and [NotificationReportEntity] tables for one user.
+     * Deletes everything from the [HomeTimelineEntity], [TimelineStatusEntity], [TimelineAccountEntity],
+     * [NotificationEntity], [NotificationReportEntity] and [ConversationEntity] tables for one user.
      * Intended to be used when a user logs out.
      * @param tuskyAccountId id of the account for which to clean tables
      */
@@ -61,6 +63,7 @@ class DatabaseCleaner @Inject constructor(
             db.timelineDao().removeAllHomeTimelineItems(tuskyAccountId)
             db.timelineStatusDao().removeAllStatuses(tuskyAccountId)
             db.timelineAccountDao().removeAllAccounts(tuskyAccountId)
+            db.conversationDao().deleteForAccount(tuskyAccountId)
         }
     }
 }