Issue 138: persist all MG properties #405

Job	Run time
flake8_tests	14s
python2_tests (debian10, extrasettings)	22m 39s
python3_tests (debian12, extrasettings)	23m 43s
python2_tests (debian10, extraserver)	22m 7s
python3_tests (debian12, extraserver)	24m 13s
python2_tests (debian10, basicserver)	16m 58s
python3_tests (debian12, basicserver)	19m 44s
python2_tests (debian10, basicsettings)	14m 1s
python3_tests (debian12, basicsettings)	16m 1s
python2_tests (debian10, basic)	16m 37s
python3_tests (debian12, basic)	18m 24s
python3_tests (debian11, extrasettings)	22m 25s
python3_tests (debian11, extraserver)	22m 20s
python3_tests (debian11, basicserver)	18m 31s
python3_tests (debian11, basicsettings)	14m 28s
python3_tests (debian11, basic)	17m 18s
python3_tests (debian10, extrasettings)	22m 9s
python3_tests (debian10, extraserver)	22m 3s
python3_tests (debian10, basicserver)	17m 44s
python3_tests (debian10, basicsettings)	14m 6s
python3_tests (debian10, basic)	16m 47s
python3_tests (ubuntu22.04, extrasettings)	27m 36s
python3_tests (ubuntu22.04, extraserver)	27m 44s
python3_tests (ubuntu22.04, basicserver)	21m 33s
python3_tests (ubuntu22.04, basicsettings)	17m 18s
python3_tests (ubuntu22.04, basic)	20m 42s
python3_tests (ubuntu24.04, extrasettings)	24m 17s
python3_tests (ubuntu24.04, extraserver)	25m 36s
python3_tests (ubuntu24.04, basicserver)	20m 32s
python3_tests (ubuntu24.04, basicsettings)	15m 19s
python3_tests (ubuntu24.04, basic)	18m 24s
	10h 1m 33s

Provide feedback