OS: Linux 64bit, Ubuntu 18.04.4 LTS
Short description: After using "Copy to..." (Alt-C) with a file, the file is not fully selected any more (but it looks like it is selected).
Effect: After said operation, "Next file" (SPACE) doesn't work any more. Also, "Copy to..." doesn't work any more. Interestingly, "Previous/next file" (Left/Right) still works. "Enter" also works and pressing "Enter" twice (open viewer/close viewer) fixes the problem. Also interesting: this bug seems to happen only when the file is copied without any further confirmation dialogue. If the confirmation dialogue for overwriting/skipping/replacing is shown, the bug doesn't happen. This bug doesn't only happen in browser view, but also in viewer or fullscreen mode.
To reproduce (with original configuration):
1. In the browser view, select a file using keyboard or mouse
2. Press Alt-C
3. Select some location where the file doesn't exist yet, using the keyboard (e.g. enter "..") or using a cached location, and press "Enter"
4. Press SPACE
Actual behaviour: Nothing happens

Expected behaviour: Next file is selected