id,summary,reporter,owner,description,type,status,priority,component,resolution,keywords,cc,component_version,os,os_version 10947,In filenames Filezilla replaces German umlaut with normal letter + diaresis marker,Hubert Schölnast,,"My local computer is a Mac (OS X El Capitan, Version 10.11.6) My remote server has Ubuntu 16.04 The FileZilla version is 3.20.1 I use FileZilla to connect my Mac with the Server. I use empty directories on both computers. I also activate: View -> Directory Comparison -> Enable (This does not influence the problem, but helps to see it) I use ssh to log into my remote server, and there I write this command (I use a German Keyboard Layout): {{{ touch ä }}} Then i switch to Filezille and there I click the Refresh-button. On the left side (local directory) i still see an empty directory. On the right side (remote computer) I can see the file with the name »ä« and a size of 0 byte. It has a yellow background which means, that there is no matching file on the other side (which is true). Then i use FieZilla to download this file. On the left side appears a new file with the name »ä«. This seems ok so far, but then I click the Refresh-button again, and now something weired happens: On the left side is a file named »ä« that does not match with a remote file, therefore it has a yellow background. And also the file on the remote computer with the name »ä« has no partner on the other side, and therefore it has a yellow background. Now I upload the local file »ä« to the remote computer: The result is: Two files on the remote computer! One named »ä« (this one matches with the local file), the other named »ä«, which has no matching partner. I go back to my ssh console of my remote computer and type {{{ ls -als }}} it displays: {{{ total 8 4 drwxr-xr-x 2 root root 4096 Aug 20 09:34 . 4 drwxr-xr-x 3 root root 4096 Aug 20 08:45 .. 0 -rw-r--r-- 1 root root 0 Aug 20 09:23 ä 0 -rw-r--r-- 1 root root 0 Aug 20 09:23 ä }}} I type {{{ touch ä ls -als }}} and then i see this: {{{ total 8 4 drwxr-xr-x 2 root root 4096 Aug 20 09:34 . 4 drwxr-xr-x 3 root root 4096 Aug 20 08:45 .. 0 -rw-r--r-- 1 root root 0 Aug 20 09:23 ä 0 -rw-r--r-- 1 root root 0 Aug 20 09:40 ä }}} There are two independent files, one named »ä«, the other named »ä«. Looks like the same name, but thats not true. They have different names! Here is the problem: The original file has the name »ä« this is the Unicode Character 'LATIN SMALL LETTER A WITH DIAERESIS' (U+00E4). But when Filezilla downloads a file with this letter in its name to my Mac, it transforms this one character into two characters, which are: Unicode Character 'LATIN SMALL LETTER A' (U+0061) followed by Unicode Character 'COMBINING DIAERESIS' (U+0308) Most fonts (not all!) display (U+0061) followed by (U+0308) as a ligature that looks exactly like the single character (U+00E4). But (U+0061) followed by (U+0308) (two characters) is **NOT** identic with (U+00E4) (one character). I can't say since which version of FileZilla this problem exists, but older versions of FileZilla did not have this bug. When I download a file and then upload it again, i don't want to create a duplicate file with a new name. I want that the filename doesn't change!",Bug report,new,critical,FileZilla Client,,changes filenames,,3.20.1,OS X,"El Capitan, Version 10.11.6"