_mcd_channel_details_free: use g_boxed_free instead of playing with GValues
_mcd_channel_details_free: use g_boxed_free instead of playing with GValues

freedesktop-unofficial-mirror/telepathy__telepathy-mission-control,freedesktop-unofficial-mirror/telepathy__telepathy-mission-control,freedesktop-unofficial-mirror/telepathy__telepathy-mission-control,freedesktop-unofficial-mirror/telepathy__telepathy-mission-control