[jira] Created: (SCM-509) Tagging fails to use provided message while checking in works fine

[Robert Scholte (JIRA)]

Tagging fails to use provided message while checking in works fine
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                 Key: SCM-509
                 URL: http://jira.codehaus.org/browse/SCM-509
             Project: Maven SCM
          Issue Type: Bug
          Components: maven-scm-api
    Affects Versions: 1.2
            Reporter: Robert Scholte
            Priority: Critical


During a mvn prepare:release there are 3 scm-action: checking in release pom, 
tagging, checking in pom for next snapshot. Both the checkins have a message 
starting with [maven-release-plugin], while the tag the the default message 
[maven-scm]
After some investigation it seems like it works like this for ages although 
according to the code the attempt is to give them all the same prefix.
Compare these changelogs for example
* http://fisheye.codehaus.org/changelog/qdox/?cs=664
* http://fisheye.codehaus.org/changelog/qdox/?cs=665
* http://fisheye.codehaus.org/changelog/qdox/?cs=666

For me it's critical, because with a current project our SVN system has a 
prehook which requires every message to start with BugID: {theId}. 

I thought I found it, but cheered a bit too early.
The {{org.apache.maven.scm.command.tag.AbstractTagCommand}} is responsible for 
the default message.
It seems like {{parameters.getScmTagParameters( 
CommandParameter.SCM_TAG_PARAMETERS );}} was empty, so it returned an empty 
{{ScmTagParameter}}
These params were created at 
{{org.apache.maven.shared.release.phase.ScmTagPhase}}  and 
{{org.apache.maven.scm.provider.AbstractScmProvider}} adds them to the 
CommandParameters. 
Somewhere around here something goes wrong.

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