Discrepancy in SNAPSHOT jar filename between JAR Plugin and Assembly Plugin

I am seeing an interesting discrepancy between the JAR plugin and the Assembly plugin.  I have the JAR plugin configured to add the dependencies to the MANIFEST:         org.apache.maven.plugins     maven-jar-plugin         

baffled by how merging works

I'm fairly new to svn and I'm trying to get my head around how svn handles branches and merging.  I've done a lot of reading on this, I've been able to work my way through merging changes from TRUNK to a BRANCH but I still do not quite understand it.  If someone could start by explaining what ha