Merge pull request #736 from FissoreD/fix-modes #526

Job	Run time
coq	1m 5s
coq-elpi	1m 51s
hierarchy-builder	1m 36s
mathcomp-ssreflect	3m 10s
mathcomp-bigenough	1m 32s
mathcomp-fingroup	2m 8s
mathcomp-finmap	1m 45s
mathcomp-algebra	3m 23s
mathcomp-classical	2m 47s
multinomials	2m 12s
mathcomp-solvable	2m 52s
mathcomp-reals	2m 23s
mathcomp-field	4m 22s
mathcomp-experimental-reals	2m 3s
mathcomp-reals-stdlib	1m 43s
mathcomp-real-closed	4m 5s
mathcomp-analysis	11m 50s
mathcomp-character	4m 16s
mathcomp	1m 51s
odd-order	8m 44s
mathcomp-analysis-stdlib	1m 56s
	1h 7m 34s

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