tdf#126508 Fix crash when changing icon style

Regression from b58aa94f1f365c746135470bceb97cc182c289bc

Change-Id: I253447c197d8b333e26f243e26794e775f3edcee
Reviewed-on: https://gerrit.libreoffice.org/76589
Tested-by: Jenkins
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>
diff --git a/sfx2/source/sidebar/SidebarController.cxx b/sfx2/source/sidebar/SidebarController.cxx
index 4dd30f0..f2f532f 100644
--- a/sfx2/source/sidebar/SidebarController.cxx
+++ b/sfx2/source/sidebar/SidebarController.cxx
@@ -729,6 +729,8 @@ void SidebarController::SwitchToDeck (
    const DeckDescriptor& rDeckDescriptor,
    const Context& rContext)
{
    maFocusManager.Clear();

    const bool bForceNewDeck ((mnRequestedForceFlags&SwitchFlag_ForceNewDeck)!=0);
    const bool bForceNewPanels ((mnRequestedForceFlags&SwitchFlag_ForceNewPanels)!=0);
    mnRequestedForceFlags = SwitchFlag_NoForce;