[JENKINS-59576] Branch source plugin seems to ignore certain tag names

The Github branch source plugin seems to interact with the Global Pipeline Libraries configuration. I have a library configured there and set up the "Discover Branches" and "Discovery Tags" behavior (see screenshot).

I have created a set of tags on the repository included here:

1.0

1_0

release-1.0

release-1_0

release_1_0

taggy

Of those, the following get discovered:

1.0

1_0

release_1_0

release-1_0

taggy

The following tags are not discovered:

release-1.0

release_1.0

I can make no sense of this. It is 100% reproducible but I see no logic on why these two tags are not discovered by the plugin.

This is a GHE setup using a local GHE server.

 

 

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Originally reported by hgschmie, imported from: Branch source plugin seems to ignore certain tag names

• status: Open
  
• priority: Minor
  
• component(s): github-branch-source-plugin
  
• resolution: Unresolved
  
• votes: 0
  
• watchers: 1
  
• imported: 2025-12-02
  

Raw content of original issue

The Github branch source plugin seems to interact with the Global Pipeline Libraries configuration. I have a library configured there and set up the "Discover Branches" and "Discovery Tags" behavior (see screenshot).


I have created a set of tags on the repository included here:


1.0

1_0

release-1.0

release-1_0

release_1_0

taggy


Of those, the following get discovered:


1.0

1_0

release_1_0

release-1_0

taggy


The following tags are not discovered:


release-1.0

release_1.0


I can make no sense of this. It is 100% reproducible but I see no logic on why these two tags are not discovered by the plugin.


This is a GHE setup using a local GHE server.


 


 

1 attachment

- [Screen Shot 2019-09-29 at 18.58.37.png](https://issues.jenkins.io/secure/attachment/48883/Screen%20Shot%202019-09-29%20at%2018.58.37.png)
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