1. Open Expert config. 2. Search for "FileFormatVersion" 3. Edit one of the properties Expected: Edit field should use a spin box when editing numbers. Actual: Simple plain text edit field
Although the input accepts only numeric values for this variable I think it#s a good idea to use specialized controls.
Fixed with commit 1f874d384228867ee450d3e1d53c821519b51722 (forgot to mention the bug number in commit).