Kerbal Space Program

In KSP 1.0.4, running under Steam on Ubuntu 14.04, hitting Enter after typing a filename in the quicksave dialog closes the quicksave dialog, giving the impression that the game has been successfully saved, but does not save the current game state to the filename provided. Meanwhile, hitting Escape in the quicksave dialog causes the current state of the game to be saved to the entered filename. This is contrary to the generally accepted UI convention that Enter submits an action and Escape cancels it, and has caused data loss due to unexpected and unnoticed failure to save on at least one occasion. The "save" and "cancel" buttons in the dialog window work as expected.

Expected behavior: Enter should save, Escape should cancel
Actual behavior: Enter cancels, Escape saves.

How to reproduce: Open the quicksave dialog. Type a filename. Hit enter. If the file did not exist, it will not have been created. If it existed, it will not have been updated. Open the quicksave dialog again. Type a filename. Hit escape. A file will have been created/updated according to the filname typed.