'Expression register in VsVim enters insert(visual) mode instead of prompting for expression

Vim from insert mode, on entering <C-r>= goes into command mode and we can ask it for calculating certain expression (e.g. <C-r>=123+456 will insert 579).
But VsVim goes into insert(visual) mode.

It doesn't work even in normal mode with "=123+456.
Is there any workaround?



Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source