Allow for image having unique file constraints

[kevinhowbrook]

No description provided.

[codecov-commenter]

Codecov Report

Merging #15 (b9c7762) into main (5f405aa) will decrease coverage by 10.11%.
The diff coverage is 20.00%.

@@             Coverage Diff             @@
##             main      #15       +/-   ##
===========================================
- Coverage   63.63%   53.52%   -10.12%     
===========================================
  Files           3        3               
  Lines          55       71       +16     
===========================================
+ Hits           35       38        +3     
- Misses         20       33       +13     

Impacted Files	Coverage Δ
wagtailmakeup/management/commands/make_up.py	42.10% <20.00%> (-9.12%)	⬇️

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[lgtm-com]

This pull request introduces 1 alert when merging b9c7762 into 5f405aa - view on LGTM.com

new alerts:

• 1 for Unused import