Fix being able to undo initial GtkSourceView load
Fix being able to undo initial GtkSourceView load

rschroll/reinteract,johnrizzo1/reinteract,alexey4petrov/reinteract,jbaayen/reinteract,johnrizzo1/reinteract,rschroll/reinteract,jbaayen/reinteract,alexey4petrov/reinteract,rschroll/reinteract,johnrizzo1/reinteract,jbaayen/reinteract,alexey4petrov/reinteract