Undo and eraser don't work in pixel annotation tool

[royschwartz2]

Describe the bug
When using pixel annotation, undo doesn't work. Instead of undoing the last brush stroke it undos pixel by pixel. The eraser tool (assuming that the button with a scissors icon is an eraser) doesn't do anything.

To Reproduce
Steps to reproduce the behavior:
Selecting the label and annotating, then pressing the undo button. Selecting the scissors button and applying to existing annotation.

Expected behavior

• Undo of last brush stroke with undo
• Erasing of previous brush stroke with the scissors tool

Environment (please complete the following information):

• OS: Tried on Linux Ubuntu 20.04, MacOS Big Sur 11.3
• Label Studio Version 1.01

[makseq]

Hope the latest version works well.

[royschwartz2]

@makseq It does! Thanks!

[ainnotate]

This issue still seems to be there on the latest version 1.6.0. Any updates on this?

[makseq]

@ainnotate it's been broken since 1.6.0 again. Hope we will fix it soon.