Fixed an issue where unknown linedef and thing flags were lost when loading the map with the wrong game configuration, or switching between game configurations in the binary map formats. Fixes #1072 (#1083)

Fixed an issue where unknown linedef and thing flags were lost when loading the map with the wrong game configuration, or switching between game configurations in the binary map formats. Fixes #1072

Update all FOF sides when modifying offsets/skew, always reset local texture offsets with reset actions

UDBScript: fixed a crash when trying to access the UDMF fields of a thing that has its scale set. Fixes #1079

Fixed a crash when the loaded resources contained a flat with the same name as an internal sprite. Fixes #1071

Curve Linedefs Mode: use Ctrl+Alt+RMB+Drag with Fixed Circular Curve to match angle and vertex count to 15 degree segments (#1070)