Nyall Dawson 752f6bd150 Fix classes which violate rule of three, by implementing required
copy/= operators or making them private

This revealed (and fixes) some issues, including a potential crash
using server access control (refs #13919), and a potential crash with
diagrams
2016-01-22 18:45:45 +11:00
..
2015-07-29 11:52:14 +02:00
2015-07-29 11:52:14 +02:00
2015-07-29 11:52:14 +02:00
2015-07-29 11:52:14 +02:00
2015-07-29 11:52:14 +02:00
2015-07-29 11:52:14 +02:00
2015-07-29 11:52:14 +02:00
2015-07-29 11:52:14 +02:00