fix(management,merge_attributes): allow target attributes with descendants #990

Job	Run time
Test dev setup on ubuntu-latest	26s
Test dev setup on ubuntu-latest	26s
Build python wheel	54s
Build python wheel	54s
Test dev setup on windows-latest	2m 16s
Test dev setup on windows-latest	2m 16s
Test dev setup on macos-latest	23s
Test dev setup on macos-latest	23s
lint / Lint	18s
lint / Lint	18s
End-to-end Test (Python: 3.12, DB: postgres)	5m 35s
End-to-end Test (Python: 3.12, DB: postgres)	5m 35s
Test (Python: 3.8, DB: mysql)	11m 12s
Test (Python: 3.8, DB: mysql)	25m 33s
Test installation of all dependencies	51s
Test installation of all dependencies	51s
Test (Python: 3.8, DB: postgres)	11m 13s
Test (Python: 3.8, DB: postgres)	25m 33s
Test (Python: 3.12, DB: mysql)	11m 12s
Test (Python: 3.12, DB: mysql)	29m 42s
Test (Python: 3.12, DB: postgres)	11m 12s
Test (Python: 3.12, DB: postgres)	28m 43s
Indicate completion to coveralls	3s
Indicate completion to coveralls	2s
required-checks-pass	2s
required-checks-pass	4s
	2h 55m 57s

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