This is not about WP, it's about hosting a plugin at WP.
I created a new version 1.0.2 for my plugin custon-style, updated trunk/readme.txt to contain Stable tag: 1.0.2, created and commited tags/1.0.2 and still.
The current version shown shown at custon-style is still 1.0.
No error reported by the validator, version ok .. what's wrong now?