More helpful exception text for Registerbase #2890

Job	Run time
codecheck / codecheck	39m 29s
docker / docker (fedora39)	21m 35s
linux / linux (-doc-mpi-)	38m 50s
docker / docker (rocky8)	25m 4s
linux / linux (-mpi-)	49m 24s
mac / macports (macos-12)	17m 56s
linux / linux (-coverage-mpi-)	1h 0m 54s
mac / macports (macos-14)	17m 8s
linux / linux (-debug-)	29m 22s
mac / macports (+allmodules, macos-12)	27m 6s
mac / macsimple (macos-12)	8m 0s
linux / linux (-debug-mpi-)	39m 15s
mac / macsimple (macos-14)	10m 59s
linux / linux (-intel-)	47m 37s
conda / conda (ubuntu-20.04)	10m 19s
linux / linux (-pycv-mpi-)	16m 39s
conda / conda (macos-12)	19m 14s
conda / conda (macos-14)	8m 41s
	8h 7m 32s

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