If multiple commit links are present in a message, then the message does not get displayed correctly.

Here is an example commit message:

<---
Analyser - ScanChainController crash adding pin to list that need to be updated more than once.

Unsure how this happens but this looks to be the place where it occurs, so make more defensive.

Review 5356
Bug 8239
-->

We have two rules:
[Bb]ug (\d+) -> http://bugs.ctg.local/bugzilla/show_bug.cgi?id=$1
[Rr]eview (\d+) -> http://review:8080/ui#review:id=$1

The commit text is displayed in SourceTree like this (I have enclosed the text that is made into a hyperlink with double square brackets):

<--
Analyser - ScanChainController crash adding pin to list that need to be updated more than once.

Unsure how this happens but this looks to be the place where it occurs, so make more defensive.

Review 5356
Analyser - ScanChainController crash adding pin to list that need to be updated more than once.

Unsure how this happens but this looks to be the place where it occurs, so make more defensive.

[[Review 5356]]
[[Bug 8239]]
-->