Error when closing Rcon after entering a command

[fred0r]

compiled latest xqf-git with latest qstat.
added a hlds-server, which actually is hlds-cstrike and saved the rcon-pw.
when opening the rcon-menuoption and clicking on 'close' - without entering a command- xqf returns to the 'main-screen'.
but after entering just one rcon-command and clicking on 'close', xqf dies with:

(xqf:87304): Gtk-WARNING **: 06:27:12.716: Attempting to add a widget with type GtkImage to a GtkToolButton, but as a GtkBin subclass a GtkToolButton can only contain one widget at a time; it already contains a widget of type GtkButton

munmap_chunk(): invalid pointer