Recognize Jira issue URL
When mentioning a JIRA issue URL in a MR, I expect it to be detected the same way it's detected when the issue identifier is used (e.g. PROJECT-33)
Steps to reproduce
Create a MR mentioning a JIRA with it's full URL.
What is the current bug behavior?
Currently, if the URL is used, the JIRA issue isn't seen so hooks aren't triggered (closing it, commenting, etc...)
What is the expected correct behavior?
I guess it should be the same behaviour when the JIRA identifier is used, as we have everything to construct the full URL.
Results of GitLab environment info
Seen on GitLab CE 3.4.5
I can work on the fix if this proposal make sense.