problem with conflict of permalinks in multiple instalations

[thomask]

confirmed bug in 2.1, was not in older versions, see ​http://wordpress.org/support/topic/106386?replies=2

I got two separate wordpress instalation
​http://www.kapler.cz
​http://www.kapler.cz/tibetska-doga

when I run permalinks only on the first one, it works fine, but when i turn permalinks on also on the second one, it "jumps" to the 404 page (with right path e.g. ​http://www.kapler.cz/tibetska-doga/my-article-name
but with layout (template, header..) of the first instalation.

I have just did reinsatalation of the second blog to 2.1, prior this reinstalation the permalinks were working normaly. I tried to delete both .htaccess and make permalinks live again, but nothing helps.

That is an unusual configuration, and may be a limitation of htaccess rewrite based perma-links

Possibly try adding a rewrite rule to exclude /tibetska-dog/?(.*) from the root install's htaccess?

But, as fools said, this is an unusual configuration and I have had no problems running an install at / and then at /wptest.

Cannot reproduce

Should work fine as the root's install detects the folder tibetska-doga exists and so ignores doing mod_rewrite and tibetska-doga's .htaccess file takes priority over the root's (assuming it's actually there, which may have been the problem).