idiff acceptance fix

[ESadek-MO]

🚀 Pull Request

Closes #5098.

Description

idiff was failing when "accept" was chosen (often with the user unaware), as there was a conditional that checked for file name duplication. Since the idea is to replace the new file, I've removed this conditional entirely.

Draft because I have yet to test this works/doesn't break anything, and needs a whats new.

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (c526ce0) 89.37% compared to head (290f3fd) 89.37%.
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5482   +/-   ##
=======================================
  Coverage   89.37%   89.37%           
=======================================
  Files          89       89           
  Lines       22444    22446    +2     
  Branches     5381     5387    +6     
=======================================
+ Hits        20059    20061    +2     
  Misses       1639     1639           
  Partials      746      746           

see 2 files with indirect coverage changes

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[bjlittle]

@ESadek-MO LGTM 👍