process_pr: only trigger automatic tests for first L2 signature

[iarspider]

No description provided.

[cmsbuild]

A new Pull Request was created by @iarspider for branch master.

@aandvalenzuela, @iarspider, @cmsbuild, @smuzaffar can you please review it and eventually sign? Thanks.
@antoniovilela, @sextonkennedy, @rappoccio you are the release manager for this.
cms-bot commands are listed here

[cmsbuild]

cms-bot internal usage

[cmsbuild]

Pull request #2214 was updated.

[smuzaffar]

+externals

@iarspider , looks good. By the way, as now auto_test_comment will point to first comment so one side effect will be that if someone adds a comment to PRs, such as cms-sw/cmssw#44735 , then bot will trigger tests (due to https://github.com/cms-sw/cms-bot/blob/master/process_pr.py#L1822-L1826 check as previous test url will not match the new test request url). There might be few such PRs but I guess we can ignore those for now. At least this fix will protect us re-running tests for new PRs.

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs after it passes the integration tests. This pull request will now be reviewed by the release team before it's merged. @antoniovilela, @rappoccio, @sextonkennedy (and backports should be raised in the release meeting by the corresponding L2)

[smuzaffar]

@missirol , this should fix the issue of re-triggering PR tests ( as we have seen for cms-sw/cmssw#44735 ) with one side effect see #2214 (comment)

[missirol]

Thank you @smuzaffar !