Regression: Activating Desktop Icon does not Use Default Application

As of the last release, double-clicking an icon on the desktop no longer opens it with the default assigned application - but rather opens a thunar window in the Desktop folder with the file highlighted.

Example file: "test.txt" - default action is to open in mousepad

A git bisect has identified the following commit as the cause: 9165a61f (Dont execute files, passed via command line due to security risks)

The commit is related to this bug report: #121 (closed). Since thunar also manages desktop icons, was the commit intended to also affect them or is this an unintended consequence?

The way it works now: I double-click the text file, it opens thunar with the file selected, I double-click the file a second time and it opens it. There is an extra effort required without any real security control.