Tests

Fix gap in validation of pre-existing certificates when switching to PKI mode #3170

Job	Run time
Documentation	5m 13s
Code (oldstable)	8m 6s
Client (oldstable, ubuntu-latest)	1m 12s
Code (stable)	7m 51s
Client (oldstable, macos-latest)	59s
System (stable, cluster, dir)	11m 55s
Code (tip)	10m 40s
Client (oldstable, windows-latest)	2m 17s
System (stable, cluster, btrfs)	13m 7s
Client (stable, ubuntu-latest)	1m 4s
System (stable, cluster, lvm)	12m 48s
Client (stable, macos-latest)	1m 17s
System (stable, cluster, zfs)	12m 11s
Client (stable, windows-latest)	2m 42s
System (stable, cluster, ceph)	16m 38s
System (stable, cluster, random)	14m 27s
System (stable, standalone, dir)	22m 33s
System (stable, standalone, btrfs)	22m 15s
System (stable, standalone, lvm)	41m 18s
System (stable, standalone, zfs)	38m 13s
System (stable, standalone, ceph)	1h 15m 30s
System (stable, standalone, random)	35m 5s
System (oldstable, cluster, dir)	11m 47s
System (oldstable, standalone, dir)	23m 57s
System (tip, cluster, dir)	16m 16s
System (tip, standalone, dir)	26m 32s
	7h 15m 53s

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