Merge branch 'feature-c/3938-free-comments-in-reports' into 'dev'

js/export.js: free (unsaved) comments at the end of each report

Closes #3938

See merge request !519
5 jobs for dev in 6 minutes and 13 seconds (queued for 9 seconds)
Status Job ID Name Coverage
  Test Tools
passed #419957
test_tools

00:00:07

 
  Test Quality
passed #419958
web
code_quality

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  Test Unit
passed #419959
web
test_browser_unit

00:00:08

passed #419960
web
test_server_unit

00:00:16

 
  Test Functional
passed #419961
docker x86_64
test_server_functional

00:05:37