fix check before call conversationDirtyAction

nixzhu · nixzhu · commit e9d61a3d13e2 · 2016-08-15T11:07:02.000+08:00
diff --git a/Yep/ViewControllers/Conversation/ConversationViewController.swift b/Yep/ViewControllers/Conversation/ConversationViewController.swift
@@ -675,7 +675,7 @@ final class ConversationViewController: BaseViewController {
     override func viewWillDisappear(animated: Bool) {
         super.viewWillDisappear(animated)
 
-        if conversationIsDirty {
+        if conversationIsDirty && !conversation.invalidated {
             if let groupID = conversation.withGroup?.groupID {
                 conversationDirtyAction?(groupID: groupID)
             }

Original file line number	Diff line number	Diff line change
`@@ -675,7 +675,7 @@ final class ConversationViewController: BaseViewController {`
`675`	`675`	`override func viewWillDisappear(animated: Bool) {`
`676`	`676`	`super.viewWillDisappear(animated)`
`677`	`677`
`678`		`- if conversationIsDirty {`
	`678`	`+ if conversationIsDirty && !conversation.invalidated {`
`679`	`679`	`if let groupID = conversation.withGroup?.groupID {`
`680`	`680`	`conversationDirtyAction?(groupID: groupID)`
`681`	`681`	`}`