Answer
Probably nothing is wrong. The revision 11102 is the revision of the tag and may not be shown in the history of the trunk. If you list all revisions you will get something like the following list:
11103 21.03.12 23:33 1 user [maven-release-plugin] prepare for next development iteration
11102 21.03.12 23:33 1 user [maven-release-plugin] copy for tag x-maven-plugin-0.4.1
11101 21.03.12 23:33 1 user [maven-release-plugin] prepare release x-maven-plugin-0.4.1
The revision number, the plugin receives from SVN, is that of the tag.
