Clear duplicate selection when user returns to vernacular input

[imnasnainaec]

Fixes #3259 (both gives the expected behavior and fixes the odd bug)

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This change is 

[codecov]

Codecov Report

Attention: Patch coverage is 33.33333% with 2 lines in your changes missing coverage. Please review.

Project coverage is 74.62%. Comparing base (468e516) to head (6a27c3e).
Report is 31 commits behind head on master.

Files with missing lines	Patch %	Lines
...onents/DataEntry/DataEntryTable/NewEntry/index.tsx	33.33%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3290      +/-   ##
==========================================
+ Coverage   74.59%   74.62%   +0.02%     
==========================================
  Files         279      279              
  Lines       10683    10686       +3     
  Branches     1289     1290       +1     
==========================================
+ Hits         7969     7974       +5     
+ Misses       2353     2351       -2     
  Partials      361      361              

Flag	Coverage Δ
backend	83.97% <ø> (+0.08%)	⬆️
frontend	66.41% <33.33%> (-0.02%)	⬇️

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[jasonleenaylor]

Reviewed 2 of 2 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @imnasnainaec)