Bug 1620411: Fixing up the checking for start/stop dates

When the row has disabled fields

Also fixing select options when we have a locked option

We used to remove the option but this causes a problem showing the
option as selected one. Need to keep all options and then disable the
locked one from being picked twice.

behatnotneeded

Change-Id: I4db0d6810099c751f46b504edf1a0cffde6e6b83
Signed-off-by: Robert Lyon <robertl@catalyst.net.nz>