Fix bug where having branch wildcards at different depths would cause ArrayBoundExceptions

[frankier]

An example use case of this is the Jenkins Multibranch Pipeline to try and find stuff to build in a chaotic monorepo. I set "Include branches" to: trunk,branches/,branches//,branches///,branches////,tags/* and got an indexing exception. This patch seems to fix it.

[recena]

@frankier Is there any Jira issue for that?

[oleg-nenashev]

Without knowing the stacktrace, it's hard to decide. The patch seems to be valid, but I agree with previous reviewers