Pull request webhook didn't fired when push to an exist pull request branch

[lunny]

As title.

[daviian]

@lunny I am on it

[daviian]

@lunny Guess this should be done after your PR #2548 is merged?

[lunny]

@daviian No. #2548 will not fix this

[daviian]

@lunny Ok, will have a look at it before finishing #2548

[daviian]

@lunny Can't reproduce that on master. Do you?

[ethantkoenig]

I also cannot reproduce. @lunny, can/should we close this issue?

[lunny]

OK. Let's close this one.