updating Behavior deletion signal handler so that it uses the new .for_model lookup for a notification
updating Behavior deletion signal handler so that it uses the new .for_model lookup for a notification

izzyalonso/tndata_backend,tndatacommons/tndata_backend,izzyalonso/tndata_backend,tndatacommons/tndata_backend,izzyalonso/tndata_backend,tndatacommons/tndata_backend,tndatacommons/tndata_backend,izzyalonso/tndata_backend