This is a regression from commit 346c15102b, which creates a new QRegExp
in setFilterRegExp, losing previously set case sensitivity property
(i.e. when the code does proxy->setFilterCaseSensitivity(Qt::CaseInsensitive)
before setFilterRegExp).
Interestingly that commit ensured that setFilterFixedString would still
preserve CaseSensitivity, but not setFilterRegExp(QString).
Change-Id: I3d37d001ce6e86dd90e7e07431440a42607172f9
Reviewed-by: Samuel Gaist <samuel.gaist@idiap.ch>
Reviewed-by: Christian Ehrlicher <ch.ehrlicher@gmx.de>
Reviewed-by: Luca Beldi <v.ronin@yahoo.it>