Swarm: Remove SIP contact => crash

#0  0x00007fffee236d74 in QVariant::QVariant(QString const&) () at /lib64/libQt5Core.so.5
#1  0x000000000044aee2 in SmartListModel::getConversationItemData(lrc::api::conversation::Info const&, lrc::api::account::Info const&, int) const ()
#2  0x0000000000449db0 in SmartListModel::data(QModelIndex const&, int) const ()
#3  0x00007fffef187acd in QQmlDMAbstractItemModelData::value(int) const () at /lib64/libQt5QmlModels.so.5
#4  0x00007fffef181f54 in QQmlDMCachedModelData::metaCall(QMetaObject::Call, int, void**) () at /lib64/libQt5QmlModels.so.5
#5  0x00007fffee8789a6 in loadProperty(QV4::ExecutionEngine*, QObject*, QQmlPropertyData const&) () at /lib64/libQt5Qml.so.5
#6  0x00007fffee879b17 in QV4::QObjectWrapper::getQmlProperty(QV4::ExecutionEngine*, QQmlContextData*, QObject*, QV4::String*, QV4::QObjectWrapper::RevisionMode, bool*, QQmlPropertyData**) () at /lib64/libQt5Qml.so.5
#7  0x00007fffee85f664 in QV4::QQmlContextWrapper::lookupInParentContextHierarchy(QV4::Lookup*, QV4::ExecutionEngine*, QV4::Value*) () at /lib64/libQt5Qml.so.5

Scenario

• Sip account add a contact
• Right click
• remove contact

added to epic &19 (closed)

added SIP swarm ~265 labels

Also on master and non-SIP.

added SprintTo review label

closed

mentioned in commit dfbcfe03