Fix database deadlock when update issue labels (#17649) #17665
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CI failing is fixed by #17668 |
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silverwind
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make L-G-T-M work. |
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Backport #17649.
This fix updates issue labels one by one, and won't cause database deadlock.
In future, we can use a batch API (in 1.16 or later) to update all changed labels by one request.
For 1.15, this fix seems enough.