[Fixes #11903] The metadata upload (either via forms or REST API) updates the resource even when the UUID is different.

[ahmdthr]

Fixes issue#11903. The metadata upload (either via forms or REST API) updates the resource even when the UUID is different. Also mentioned at GeoNode/geonode-project#498 (comment)

Checklist

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[codecov]

Codecov Report

Merging #11904 (60a8eca) into master (9d6a246) will increase coverage by 0.01%.
The diff coverage is 90.90%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #11904      +/-   ##
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+ Coverage   63.49%   63.51%   +0.01%     
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  Files         866      866              
  Lines       52508    52506       -2     
  Branches     6599     6599              
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+ Hits        33339    33347       +8     
+ Misses      17653    17642      -11     
- Partials     1516     1517       +1