The spinner on "Add to merge train" button spins indefinitely
Initially reported at https://gitlab.slack.com/archives/CBZGR90A2/p1568044874112000
As one of the gitlab-com/www-gitlab-com#5177 feedback, it seems that sometimes the spinner on "Add to merge train" button spins indefinitely.
Steps to reproduce
Create a new project and enable "Merge pipelines will try to validate the post-merge result prior to merging"
Add the following
.gitlab-ci.ymlfile. Note that the job does not have
my job: script: - echo "Hello, world"
Create a new merge request and wait until the MR's pipeline completes.
Click the "Start merge train" button
If the text changes to "Added to the merge train by ", click "Remove from merge train"
Repeat steps 4 and 5 until the "Start merge train" button spins indefinitely. I find it usually takes 3 or 4 replications to get to this state.