6358c7754c
This adds three functions to check the state of the stroke in the StrokeCache, removing the references to first_time and mirror_symmetry_pass from the code. This makes easier to understand what each code path is doing inside of each tool. Some tools were using mirror_symmetry_pass incorrectly, so this should also fix unreported bugs with radial and tiling symmetry related to that. Reviewed By: sergey Differential Revision: https://developer.blender.org/D8164