Support dots in image names

[qwerty287]

fixes #6429

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 35.32%. Comparing base (e57f4f3) to head (d8944de).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6431   +/-   ##
=======================================
  Coverage   35.32%   35.32%           
=======================================
  Files         429      429           
  Lines       28759    28759           
=======================================
  Hits        10160    10160           
  Misses      17669    17669           
  Partials      930      930           

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