Changelog:
===========
-Fix SearchFilter handling of quoted and comma separated strings, when
.get_search_terms is being called into by a custom class.
-Revert number of 3.15.0 issues which included unintended side-effects.
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
