Version: 1.4 (using 4.3.90 (KDE 4.3.90 (KDE 4.4 RC1)) "release 209", KDE:KDE4:Factory:Desktop / openSUSE_11.2) Compiler: gcc OS: Linux (x86_64) release 2.6.31.8-0.1-desktop Don't think that it's dolphin bug but... When i trying to open remote (ftp) file by: right click -> open with... -> choose a program and then open file via this dialog (in my case text file in kate) it opens a local copy in /tmp dir. All work done with this file doesn't affect remote file. May be this bug is also work for smb, I didn't test.
*** This bug has been marked as a duplicate of bug 222519 ***