Multiple PRs autoclosed and then new PRs opened

[edmorley]

This is a:

• Bug report (non-security related)
• Feature request
• I'm not sure which of those it is

I'm using:

• The Renovate GitHub App
• Self-hosted GitHub
• Self-hosted GitLab
• Self-hosted VSTS

Please describe the issue:

Hi :-)

While I was away, Renovate autoclosed these unmerged PRs:
neutrinojs/neutrino#631
neutrinojs/neutrino#712
neutrinojs/neutrino#718
neutrinojs/neutrino#719
neutrinojs/neutrino#724
neutrinojs/neutrino#733

And then later opened new PRs matching those that were closed:
neutrinojs/neutrino#765
neutrinojs/neutrino#766
neutrinojs/neutrino#767
neutrinojs/neutrino#768
neutrinojs/neutrino#769
neutrinojs/neutrino#770

I don't believe we did anything to cause this (eg we didn't delete the branches), so this seems like a bug?

[rarkins]

@edmorley thanks for the detailed report and sorry for the inconvenience. It seems that during one run only, Renovate couldn't detect all the npm package files:

{"repository":"mozilla-neutrino/neutrino-dev","manager":"npm","files":["package.json"],"msg":"Detected package files","time":"2018-03-26T22:12:23.979Z"}

Yet in the runs before and after, they were detected. I've checked the logs and we had no abnormally high count of autoclosing around that time either.

I've added a debug to log how many total files are detected each run, which can help narrow it down if it happens again - presumably it's an incorrect file list somehow. I might also add a repository state cleanup at the end of each run in case there's some global pollution randomly happening.

I'll keep this issue open until either one day I understand why it happened, or it's been so long since it happened that I give up.

[edmorley]

Thank you for taking a look & adding the debug logging. Happy to close this out until/if it happens again, if you'd prefer :-)