Bugfix: the Y coordinate of Point config fields was not correctly validated and lead to a crash when entering non-numeric values. Includes regression test. #1906
Bugfix: crash when setting number of extruders. #1876
Fix crash when using multiple skirts with a single, non-zero, extruder. Includes regression test
Fix the 'extruder' behavior in CLI and test that Print::Simple accepts an incomplete DynamicConfig object
Fix for incomplete extrusion on solid surfaces
Re-enable the threads config option. #1882
Failing test for broken command line scaling. #1889
Fixed broken command line scaling. Regression test was in previous commit. #1889