resetCaset function should not change the shape of other editors
resetCaset function should not change the shape of other editors

This commit fixes the following issues:
1) Windows splitting
- Start insert mode in editor
- Split editor
- Go back to the previous editor. The caret has a block shape, but insert mode

2) VCS updates
In 2021.1 VCS creates a diff window right after the file was changed.
So, the case described above happens here as well.

JetBrains/ideavim,JetBrains/ideavim