Fix the issue that clear content when paste the same content in names…

[BlueSodaWater]

What's the purpose of this PR

Fix the issue that clear content when paste the same content in namespace

Which issue(s) this PR fixes:

Fixes #4919

[hound]

Missing semicolon.

[github-actions]

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[codecov]

Codecov Report

Merging #4920 (97be1c6) into master (8f0331f) will decrease coverage by 0.06%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #4920      +/-   ##
============================================
- Coverage     48.51%   48.45%   -0.06%     
  Complexity     1728     1728              
============================================
  Files           346      346              
  Lines         10836    10836              
  Branches       1080     1080              
============================================
- Hits           5257     5251       -6     
- Misses         5256     5263       +7     
+ Partials        323      322       -1     

see 3 files with indirect coverage changes

[nobodyiam]

Looks good to me. Please add a change log to CHANGES.md and also sign the cla, thanks!