Merge branch 'dev' into 'master'

fixed a bug where the gui would crash if you tried to load a second .vmp2 file

See merge request vmp2/vmprofiler-qt!4

dependencies/vmprofiler

@@ -1 +1 @@
-Subproject commit a4b3817336939c9d6e3207e87a4f1c7830613056
+Subproject commit 0cbc83be3fb0f4293146def0c3735f39608f646b

src/qvirt_handlers.cpp

@@ -78,6 +78,9 @@ void qvirt_handlers_t::update_instrs( vm::handler::handler_t &vm_handler )
 
 void qvirt_handlers_t::on_select()
 {
+    if ( ui->virt_handlers_tree->selectedItems().empty() )
+        return;
+
     auto item = ui->virt_handlers_tree->selectedItems()[ 0 ];
 
     if ( !item )

src/qvirt_instrs.cpp

@@ -7,6 +7,9 @@ qvirt_instrs_t::qvirt_instrs_t( qvminspector_t *vminspector ) : vminspector( vmi
 
 void qvirt_instrs_t::on_select()
 {
+    if ( ui->virt_instrs->selectedItems().empty() )
+        return;
+
     auto item = ui->virt_instrs->selectedItems()[ 0 ];
 
     if ( !item )