Add testcase for taskgroup renaming

5 jobs for master in 4 minutes and 25 seconds (queued for 7 minutes and 30 seconds)
Status Name Job ID Coverage
  Test
failed clippy #893

00:01:04

passed test #892

00:03:21

 
  Build
skipped build #895
skipped documentation #894
 
  Testdeploy
skipped testdeploy #896
 
Name Stage Failure
failed
clippy Test
error: could not compile `medal`.
warning: build failed, waiting for other jobs to finish...
error: aborting due to 2 previous errors

error: could not compile `medal`.

To learn more, run the command again with --verbose.
make: *** [Makefile:20: clippy] Error 101
ERROR: Job failed: exit code 1