I have two tags in one git repository:

• v1.0.0
• release-tags/v1.0.0

When the plugin is retrieving tags (we are building on slaves, so the workspace is not present. With the version 0.6.2 this is no longer a problem thanks to the resolution of JENKINS-16290)

The second tag ("release-tags/v1.0.0") is not presented in the list-box. My guess is that this is because of the slash "/" contained in the tag name.
I hope anyone can confirm that this is the case. I will continue my investigations and try to find a Stacktrace or the corresponding line in the code (but I am not familiar with the Jenkins code base).