Re the post about a State Senator on course to be elected to 2 districts,
Ecclesiastes may be right.

Members have been returned for 2 constituencies in Westminster, including
at the 1910 election.   Formally, one of the first things the Commons does
each session is to deal with any such cases - standing orders require the
member to elect which seat he'll serve, subject to any outstanding
challenge in either seat, which occurred in 1910.  (Erskine May has a page
on this, pp 34-5 of current ed).

Do UKers on the list know of other examples?  Hard to imagine it is a
contemporary issue.