Issue when crtl + x via setState value

[oinochoe]

Steps to reproduce:

1. textarea with setstate value.
2. mention something.
3. keydown crtl + x
4. you can see mentioned string is canceled
5. omg OTL

Expected behaviour: when I want to cut off all texts and paste somewhere, i have to be able to copy mentioned texts and paste it.

Observed behaviour: it's unfortunately...

Workaround:

[sovetski]

same here