Description:

Programs, that uses gvfs do not recognize pluggable media. For example thunar does not recognize USB memory-sticks, brasero does not see DVD-RW-drive.

But the media can be mounted directly via udisksctl.

Additional info:
* package version(s)
gvfs-1.22.1-2
dbus-1.8.8-1
udisks2-2.1.3-1

Some logs:

окт 26 10:49:38 localhost kernel: scsi 7:0:0:0: Direct-Access Seagate Desktop 0130 PQ: 0 ANSI: 4
окт 26 10:49:38 localhost kernel: sd 7:0:0:0: [sdc] 976773168 512-byte logical blocks: (500 GB/465 GiB)
окт 26 10:49:38 localhost kernel: sd 7:0:0:0: [sdc] Write Protect is off
окт 26 10:49:38 localhost kernel: sd 7:0:0:0: [sdc] Mode Sense: 2f 08 00 00
окт 26 10:49:38 localhost kernel: sd 7:0:0:0: [sdc] No Caching mode page found
окт 26 10:49:38 localhost kernel: sd 7:0:0:0: [sdc] Assuming drive cache: write through
окт 26 10:49:38 localhost kernel: sdc: sdc1 sdc2 sdc3
окт 26 10:49:38 localhost kernel: sd 7:0:0:0: [sdc] Attached SCSI disk
окт 26 10:51:22 localhost ntpd[765]: adjusting local clock by 0.304368s
окт 26 10:53:01 localhost crond[310]: FILE /var/spool/cron/root USER root PID 4975 job sys-hourly
окт 26 10:53:54 localhost ntpd[765]: adjusting local clock by 0.208807s
окт 26 10:53:56 localhost dbus[319]: [system] Activating via systemd: service name='org.freedesktop.UDisks2' unit='udisks2.service
окт 26 10:53:56 localhost systemd[1]: Starting Disk Manager...
окт 26 10:53:56 localhost udisksd[5065]: udisks daemon version 2.1.3 starting
окт 26 10:53:56 localhost dbus[319]: [system] Successfully activated service 'org.freedesktop.UDisks2'
окт 26 10:53:56 localhost systemd[1]: Started Disk Manager.
окт 26 10:53:56 localhost udisksd[5065]: Acquired the name org.freedesktop.UDisks2 on the system message bus

Steps to reproduce:
1. Plug in the media
2. run thunar.