Configurables for best results with Swarm in particular, but
a generally better overall experience.
p4 configure set dm.shelve.promote=1
p4 configure set dm.keys.hide=2
Note that setting dm.shelve.promote=1 will slow down shelving
operations on an edge server, but will make the shelves globally
available. On balance, dm.shelve.promote=1 is recommended,
though admins should be aware of the trade off (a simpler global
view and cross-site code reviews, at some cost for performance
of shelving at edge sites).