At Apache Royale project we're in the process to generate a 0.9.4 release. The work is done by other committer (Om) and I'm using SourceTree in my machine.

We received the following email:

Subject: 

[royale-asjs] annotated tag org.apache.royale.framework-0.9.4-rc1 updated (29713a0 -> 25c496e)

 
 
 
content:

This is an automated email from the ASF dual-hosted git repository.

carlosrovira pushed a change to annotated tag org.apache.royale.framework-0.9.4-rc1
in repository https://gitbox.apache.org/repos/asf/royale-asjs.git.

• • • WARNING: tag org.apache.royale.framework-0.9.4-rc1 was modified! ***

    from 29713a0  (commit)
      to 25c496e  (tag)
 tagging 29713a03b0d2bf47f9db5f98a93c47902c716b86 (commit)
 replaces apache-royale-0.9.2
      by Om
      on Mon Oct 1 00:50:39 2018 -0700

• Log -----------------------------------------------------------------
  [maven-release-plugin] copy for tag org.apache.royale.framework-0.9.4-rc1
  -----------------------------------------------------------------------

No new revisions were added by this update.

Summary of changes:

========

This happen two times. I'm sure I did do nothing, so it seems for me a bug in SourceTree, due to the release manager creating and removing branches to get the release done.