Fix source_project and also pass source_project

Feedback:
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/7237#note_19747556

app/controllers/concerns/creates_commit.rb

@@ -6,12 +6,12 @@ module CreatesCommit
 
     source_branch = @ref if @ref && @repository.find_branch(@ref)
     commit_params = @commit_params.merge(
-      source_project: @project,
+      source_project: @tree_edit_project,
       source_branch: source_branch,
       target_branch: @target_branch
     )
 
-    result = service.new(@tree_edit_project, current_user, commit_params).execute
+    result = service.new(@project, current_user, commit_params).execute
 
     if result[:status] == :success
       update_flash_notice(success_notice)

app/services/commits/change_service.rb

@@ -37,6 +37,7 @@ module Commits
           @commit,
           into,
           tree_id,
+          source_project: @source_project,
           source_branch_name: @target_branch)
 
         success

app/services/files/create_dir_service.rb

@@ -8,6 +8,7 @@ module Files
         branch_name: @target_branch,
         author_email: @author_email,
         author_name: @author_name,
+        source_project: @source_project,
         source_branch_name: @source_branch)
     end
 

app/services/files/create_service.rb

@@ -10,6 +10,7 @@ module Files
         update: false,
         author_email: @author_email,
         author_name: @author_name,
+        source_project: @source_project,
         source_branch_name: @source_branch)
     end
 

app/services/files/delete_service.rb

@@ -8,6 +8,7 @@ module Files
         branch_name: @target_branch,
         author_email: @author_email,
         author_name: @author_name,
+        source_project: @source_project,
         source_branch_name: @source_branch)
     end
   end

app/services/files/multi_service.rb

@@ -10,6 +10,7 @@ module Files
         actions: params[:actions],
         author_email: @author_email,
         author_name: @author_name,
+        source_project: @source_project,
         source_branch_name: @source_branch
       )
     end