Fix bug ci test 12 in ParMmg + improve consistencies of functions #437

Job	Run time
mmg-debug / ci (ubuntu-20.04, on, off, on, off, int32_t)	54m 55s
mmg-debug / ci (ubuntu-20.04, on, off, off, off, int32_t)	46m 22s
mmg-debug / ci (ubuntu-20.04, off, off, on, off, int32_t)	33m 13s
mmg-debug / ci (ubuntu-20.04, off, off, off, off, int32_t)	57m 40s
mmg-debug / ci (macos-12, on, off, on, off, int32_t)	43m 26s
mmg-debug / ci (macos-12, on, off, off, off, int32_t)	57m 30s
mmg-debug / ci (macos-12, off, off, on, off, int32_t)	34m 14s
mmg-debug / ci (macos-12, off, off, off, off, int32_t)	48m 24s
mmg-debug / ci (ubuntu-20.04, off, off, off, on, int32_t)	9m 39s
mmg-debug / ci (macos-12, off, off, off, on, int32_t)	8m 14s
mmg-debug / ci (ubuntu-20.04, off, on, on, off, int32_t)	40m 1s
mmg-debug / ci (macos-12, off, on, on, off, int32_t)	35m 51s
mmg-debug / ci (windows-2022, off, off, off, off, int32_t)	1h 22m 34s
mmg-debug / ci (windows-2022, on, off, off, off, int32_t)	51m 17s
mmg-debug / ci (windows-2022, off, on, off, off, int32_t)	1h 20m 13s
mmg-debug / ci (ubuntu-20.04, on, on, on, on, int64_t)	9m 24s
mmg-debug / ci (ubuntu-20.04, off, off, off, off, int64_t)	5m 38s
mmg-debug / ci (macos-12, on, on, on, on, int64_t)	13m 7s
mmg-debug / ci (macos-12, off, off, off, off, int64_t)	4m 30s
mmg-debug / ci (windows-2022, on, on, off, off, int64_t)	5m 43s
mmg-debug / ci (windows-2022, off, off, off, off, int64_t)	5m 26s
	12h 7m 21s

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