Merge branch 'singleton' into 'master'

Singleton

See merge request !2
2 jobs for v0.3rc1 in 115 minutes and 45 seconds
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Status Job ID Name Coverage
  Test
failed #2460
python3
python3 tests

01:55:45

 
  Deploy
skipped #2461
python3 allowed to fail
publish to pypi
 
Name Stage Failure
failed
python3 tests Test There has been a timeout failure or the job got stuck. Check your timeout limits or try again
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