Redmine

Hi,
if i select an repository from the select, an ajax request ist made and the same select-element comes back.
so i cant choose a repository. perhaps i did smth wrong.
the request uri: http://slacktop/redmine/repositories/edit/ymisms?repository_scm=Cvs
here is the ajax response from onchange:

Element.update("tab-content-repository", "\u003Cform action=\"/redmine/repositories/edit/ymisms\" method
=\"post\" onsubmit=\"new Ajax.Request('/redmine/repositories/edit/ymisms', {asynchronous:true, evalScripts
:true, parameters:Form.serialize(this)}); return false;\"\u003E\n\n\n\n\u003Cdiv class=\"box tabular
\"\u003E\n\u003Cp\u003E\u003Clabel\u003ESCM\u003C/label\u003E\u003Cselect id=\"repository_scm\" name
=\"repository_scm\" onchange=\"new Ajax.Request('/redmine/repositories/edit/ymisms', {asynchronous:true
, evalScripts:true, method:'get', parameters:Form.serialize(this.form)})\"\u003E\u003Coption value=\" 
\"\u003E--- Please select ---\u003C/option\u003E\n\u003Coption value=\"Subversion\"\u003ESubversion\u003C
/option\u003E\n\u003Coption value=\"Darcs\"\u003EDarcs\u003C/option\u003E\n\u003Coption value=\"Mercurial
\"\u003EMercurial\u003C/option\u003E\n\u003Coption value=\"Cvs\"\u003ECVS\u003C/option\u003E\n\u003Coption
 value=\"Bazaar\"\u003EBazaar\u003C/option\u003E\n\u003Coption value=\"Git\"\u003EGit\u003C/option\u003E
\u003C/select\u003E\u003C/p\u003E\n\n\u003C/div\u003E\n\n\u003Cdiv class=\"contextual\"\u003E\n\n\u003C
/div\u003E\n\n\u003Cinput disabled=\"disabled\" name=\"commit\" type=\"submit\" value=\"Create\" /\u003E
\n\u003C/form\u003E\n");

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About your application's environment
Ruby version              1.8.7 (i486-linux)
RubyGems version          1.3.1
Rails version             2.1.2
Active Record version     2.1.2
Action Pack version       2.1.2
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Environment               development
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