Assigning to Jeroen, but as Validator development does not go through Gerrit, I no longer have an idea where to get an online commit list or diff list.

Damn, thought that my new stuff was working by now... this just shows the stuff really needs tests :)

Changes for all branches can be accessed via: https://gerrit.wikimedia.org/r/gitweb?p=mediawiki/extensions/Validator.git

I will test more with the Maps extension. Till the issue has been resolved, you can always switch to 0.4.x branch.

The particular issue reported has been fixed by https://gerrit.wikimedia.org/r/gitweb?p=mediawiki/extensions/Validator.git;a=commitdiff;h=fe604b97055ed64106ba8c64fcd295fa5bd04e8a

However, there are still issues when used with the Maps extension.

I can now again gets maps on master. It's likely there are remaining issues though.

Just put twn back on master branch for Validator. So far, so good.

Oops. Too soon. This was observed. Not sure though where it comes from:

[09-May-2012 11:32:08] PHP Notice: Undefined property: IntParam::$negativesAllowed in /www/w/extensions/Validator/includes/definitions/IntParam.php on line 46
[09-May-2012 11:32:08] PHP Fatal error: Access to undeclared static property: Param::$accumulateParameterErrors in /www/w/extensions/Validator/includes/Param.php on line 297

This has been fixed I guess - you've not raged to me about it more, and this code now has tests :)