widgets: Fix potential detach of non-const Qt containers
Summary:
Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>
core: Fix potential detach of non-const Qt containers
Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>
Reviewers: tcanabrava, rizzitello, laysrodrigues
Reviewed By: rizzitello
Differential Revision: https://phabricator.kde.org/D13780