Reassign merged mergeRequest back immediately (#189)

Author: pepakriz

server/src/MergeRequestReceiver.ts

@@ -1,4 +1,4 @@
-import { DetailedMergeStatus, GitlabApi, MergeRequest, ToDo, User } from './GitlabApi';
+import { DetailedMergeStatus, GitlabApi, MergeRequest, MergeState, ToDo, User } from './GitlabApi';
 import { assignToAuthorAndResetLabels } from './AssignToAuthor';
 import { sendNote } from './SendNote';
 import {
@@ -79,6 +79,11 @@ export const prepareMergeRequestForMerge = async (
 		return;
 	}
 
+	if (mergeRequest.state === MergeState.Merged) {
+		await assignToAuthorAndResetLabels(gitlabApi, mergeRequest, user);
+		return;
+	}
+
 	// Validate permissions
 	if (author !== null) {
 		const protectedBranch = await gitlabApi.getProtectedBranch(