Steps to reproduce

• Upload images as a zip-file
• check JCR / use them on a chooser

Expected results

• Whitespaces sanitized as dashes

Actual results

• Whitespaces not sanitized - assets cannot be used on templates when not sanitized

Workaround

• No workaround apart from manually sanitizing before uploading

Development notes

• Whitespaces are sanitised when images are uploaded directly (i.e. not through a zip-file)
  Green: direct upload as jpeg (whitespaces replaces with dashes / works)
  Red: uploaded as zip (includes whitespaces still / does not work)
  

• Note that the upload through zip also appends the file extensions to the names which may be the cause of MGNLUI-5826
  Red: Zip-upload
  Green: Direct upload