Fix bug when pasting in command line mode

[psxpaul]

As @josemarluedke mentioned here, pasting in command line mode was broken with #2515.

[codecov]

Codecov Report

Merging #2528 into master will decrease coverage by <.01%.
The diff coverage is 0%.

@@            Coverage Diff             @@
##           master    #2528      +/-   ##
==========================================
- Coverage   44.43%   44.42%   -0.01%     
==========================================
  Files         351      351              
  Lines       14260    14261       +1     
  Branches     1862     1863       +1     
==========================================
  Hits         6336     6336              
- Misses       7697     7698       +1     
  Partials      227      227

Impacted Files	Coverage Δ
...er/src/Editor/NeovimEditor/NeovimEditorCommands.ts	11.76% <0%> (-0.18%)	⬇️

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[akinsho]

Thanks for the quick fix 👍