Only show rename or deleted message once

services/web/app/coffee/Features/Editor/EditorController.coffee

@@ -59,6 +59,10 @@ module.exports = EditorController =
 							# can be done affter the connection has happened
 							ConnectedUsersManager.updateUserPosition project_id, client.id, user, null, ->
 							
+							# Only show the 'renamed or deleted' message once
+							ProjectDeleter.unmarkAsDeletedByExternalSource project
+
+
 	leaveProject: (client, user) ->
 		self = @
 		client.get "project_id", (error, project_id) ->

services/web/app/coffee/Features/Project/ProjectDeleter.coffee

@@ -7,7 +7,7 @@ FileStoreHandler = require("../FileStore/FileStoreHandler")
 
 module.exports = ProjectDeleter =
 
-	markAsDeletedByExternalSource : (project_id, callback)->
+	markAsDeletedByExternalSource : (project_id, callback = (error) ->)->
 		logger.log project_id:project_id, "marking project as deleted by external data source"
 		conditions = {_id:project_id}
 		update = {deletedByExternalDataSource:true}
@@ -16,6 +16,15 @@ module.exports = ProjectDeleter =
 			require('../Editor/EditorController').notifyUsersProjectHasBeenDeletedOrRenamed project_id, ->
 				callback()
 				
+	unmarkAsDeletedByExternalSource: (project, callback = (error) ->) ->
+		logger.log project_id: "removing flag marking project as deleted by external data source"
+		if project.deletedByExternalDataSource
+			conditions = {_id:project._id.toString()}
+			update = {deletedByExternalDataSource: false}
+			Project.update conditions, update, {}, callback
+		else
+			callback()
+
 	deleteUsersProjects: (owner_id, callback)->
 		logger.log owner_id:owner_id, "deleting users projects"
 		Project.remove owner_ref:owner_id, callback

services/web/test/UnitTests/coffee/Editor/EditorControllerTests.coffee

@@ -89,6 +89,7 @@ describe "EditorController", ->
 			@AuthorizationManager.setPrivilegeLevelOnClient = sinon.stub()
 			@EditorRealTimeController.emitToRoom = sinon.stub()
 			@ConnectedUsersManager.updateUserPosition.callsArgWith(4)
+			@ProjectDeleter.unmarkAsDeletedByExternalSource = sinon.stub()
 
 		describe "when authorized", ->
 			beforeEach ->
@@ -123,6 +124,10 @@ describe "EditorController", ->
 			it "should mark the user as connected with the ConnectedUsersManager", ->
 				@ConnectedUsersManager.updateUserPosition.calledWith(@project_id, @client.id, @user, null).should.equal true
 			
+			it "should remove the flag to send a user a message about the project being deleted", ->
+				@ProjectDeleter.unmarkAsDeletedByExternalSource
+					.calledWith(@project)
+					.should.equal true
 		
 		describe "when not authorized", ->
 			beforeEach ->

services/web/test/UnitTests/coffee/Project/ProjectControllerTests.coffee

@@ -281,6 +281,7 @@ describe "ProjectController", ->
 			@UserModel.findById.callsArgWith(1, null, @user)
 			@SubscriptionLocator.getUsersSubscription.callsArgWith(1, null, {})
 			@SecurityManager.userCanAccessProject.callsArgWith 2, true, "owner"
+			@ProjectDeleter.unmarkAsDeletedByExternalSource = sinon.stub()
 
 		it "should render the project/editor page", (done)->
 			@res.render = (pageName, opts)=>

services/web/test/UnitTests/coffee/Project/ProjectDeleterTests.coffee

@@ -30,6 +30,7 @@ describe 'Project deleter', ->
 			'../../models/Project':{Project:@Project}
 			'../DocumentUpdater/DocumentUpdaterHandler': @documentUpdaterHandler
 			"../Tags/TagsHandler":@TagsHandler
+			"../FileStore/FileStoreHandler": @FileStoreHandler = {}
 			'logger-sharelatex':
 				log:->
 
@@ -47,6 +48,32 @@ describe 'Project deleter', ->
 				@editorController.notifyUsersProjectHasBeenDeletedOrRenamed.calledWith(project_id).should.equal true
 				done()
 				
+	describe "unmarkAsDeletedByExternalSource", ->
+		beforeEach ->
+			@Project.update = sinon.stub().callsArg(3)
+			@callback = sinon.stub()
+			@project = {
+				_id: @project_id
+			}
+	
+		describe "when the project does not have the flag set", ->
+			beforeEach ->
+				@project.deletedByExternalDataSource = false
+				@deleter.unmarkAsDeletedByExternalSource @project, @callback
+			
+			it "should not update the project", ->
+				@Project.update.called.should.equal false
+
+		describe "when the project does have the flag set", ->
+			beforeEach ->
+				@project.deletedByExternalDataSource = true
+				@deleter.unmarkAsDeletedByExternalSource @project, @callback
+			
+			it "should remove the flag from the project", ->
+				@Project.update
+					.calledWith({_id: @project_id}, {deletedByExternalDataSource:false})
+					.should.equal true
+
 	describe "deleteUsersProjects", ->
 
 		it "should remove all the projects owned by the user_id", (done)->