Show DA surface in potential edge-case

There is maybe a tiny edge-case where a display becomes visible
outside of a transition, but then something about the display
changes so it becomes a transition target and thus is taken out
of the failsafe validator. This closes that gap.

Bug: 363237714
Test: N/A
Flag: EXEMPT bugfix
Change-Id: I3d00c336daabc771037f5a742115a0e4fb4ed68b