Add a function to clone map and use it where appropriate #3025

Job	Run time
Documentation	3m 38s
Code (oldstable)	1m 54s
System (stable, cluster, dir)	2m 57s
Code (stable)	1m 51s
System (stable, cluster, btrfs)	2m 3s
Client (oldstable, ubuntu-latest)	44s
Code (tip)	3m 30s
Client (oldstable, macos-latest)	55s
System (stable, cluster, lvm)	2m 54s
Client (oldstable, windows-latest)	1m 44s
System (stable, cluster, zfs)	1m 55s
Client (stable, ubuntu-latest)	45s
System (stable, cluster, ceph)	2m 0s
Client (stable, macos-latest)	54s
System (stable, cluster, random)	3m 31s
Client (stable, windows-latest)	1m 0s
System (stable, standalone, dir)	2m 0s
System (stable, standalone, btrfs)	1m 55s
System (stable, standalone, lvm)	2m 48s
System (stable, standalone, zfs)	1m 57s
System (stable, standalone, ceph)	2m 40s
System (stable, standalone, random)	1m 53s
System (oldstable, cluster, dir)	1m 59s
System (oldstable, standalone, dir)	3m 16s
System (tip, cluster, dir)	3m 37s
System (tip, standalone, dir)	3m 37s
	57m 57s

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