Conflict between `include_reference` and `pretty_names` #1310

Job	Run time
R-CMD-check / macOS-latest (release)	15m 0s
R-CMD-check / windows-latest (devel)	23m 58s
R-CMD-check / windows-latest (release)	34m 1s
R-CMD-check / windows-latest (oldrel)	31m 9s
R-CMD-check / ubuntu-latest (devel)	2h 37m 23s
R-CMD-check / ubuntu-latest (release)	10m 45s
R-CMD-check / ubuntu-latest (oldrel)	8m 36s
R-CMD-check / ubuntu-latest (oldrel-2)	3m 4s
R-CMD-check / ubuntu-latest (oldrel-3)	2m 38s
R-CMD-check / ubuntu-latest (3.6)	3m 6s
	4h 49m 40s

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