Running filezilla 126.96.36.199 (and slightly older versions exhibit this behavior as well) to Red Hat Enterprise 5x with filezilla server, we are getting doubling of text files on overwrite. It seems to affect php, js, html files but maybe not binary files although that's not thoroughly tested. We've looked at the settings on the client and found one we thought was the problem which was 'allow resume of ascii files' which states in the client that if ticked can cause problems with line endings differing from platforms, but we've unticked this option.
so here's what happens:
We open the client, connect to ftp server. Upload a local file and choose 'overwrite' of remote copy. Filesize should change slightly (should slightly increase, ex: 117kB -> 118kB), instead it does not refresh the filesize. You hit the manual refresh button and suddenly the remote copy's filesize is reported to be doubled or more (ex: 275kB). What the heck is going on??
When we redownloaded some of these files it was as if a concatenation was happening (appending random extra contents). Obviously this will not fly to micromanage files- our whole system could be screwed up completely by this. Please help!! Is this a permissions/ownership issue or something really weird happening with either the filezilla client or server?