Describe the bug

Typing ":w foo" (and Enter) makes the tab unusable

Steps To Reproduce

:w foo and Enter

Expected behavior

Actual behavior

Tab gets stuck and nothing responds.

Screenshots/DevTools console (if possible)

Your environment:

• OS: mageia v7 x86-64
• Browser: firefox-66.0.3-1.mga7
• Browser Version: 66.0.3

Additional context (if any)