Description of problem:
SELinux is preventing /usr/bin/evince-thumbnailer from 'unlink' accesses on the file .gnome_desktop_thumbnail.JAHKWW.

*****  Plugin catchall (100. confidence) suggests  ***************************

If you believe that evince-thumbnailer should be allowed unlink access on the .gnome_desktop_thumbnail.JAHKWW file by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
Do
allow this access for now by executing:
# grep evince-thumbnai /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

Additional Information:
Source Context                unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023
Target Context                unconfined_u:object_r:user_tmp_t:s0
Target Objects                .gnome_desktop_thumbnail.JAHKWW [ file ]
Source                        evince-thumbnai
Source Path                   /usr/bin/evince-thumbnailer
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           evince-3.6.1-2.fc18.x86_64
Target RPM Packages           
Policy RPM                    selinux-policy-3.11.1-92.fc18.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Host Name                     (removed)
Platform                      Linux (removed) 3.8.9-200.fc18.x86_64 #1 SMP Fri
                              Apr 26 12:50:07 UTC 2013 x86_64 x86_64
Alert Count                   14
First Seen                    2013-03-30 22:18:45 EDT
Last Seen                     2013-05-02 16:46:20 EDT
Local ID                      b9d08d7f-4e17-48cc-b540-c58217742d4f

Raw Audit Messages
type=AVC msg=audit(1367527580.588:581): avc:  denied  { unlink } for  pid=9379 comm="evince-thumbnai" name=".gnome_desktop_thumbnail.JAHKWW" dev="tmpfs" ino=1206382 scontext=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_tmp_t:s0 tclass=file


type=SYSCALL msg=audit(1367527580.588:581): arch=x86_64 syscall=unlink success=no exit=EACCES a0=b58220 a1=0 a2=7f23a2d4a798 a3=7fff047bac20 items=0 ppid=2400 pid=9379 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 ses=2 tty=(none) comm=evince-thumbnai exe=/usr/bin/evince-thumbnailer subj=unconfined_u:unconfined_r:thumb_t:s0-s0:c0.c1023 key=(null)

Hash: evince-thumbnai,thumb_t,user_tmp_t,file,unlink

audit2allow

#============= thumb_t ==============
allow thumb_t user_tmp_t:file unlink;

audit2allow -R
require {
	type thumb_t;
}

#============= thumb_t ==============
userdom_delete_user_tmp_files(thumb_t)


Additional info:
hashmarkername: setroubleshoot
kernel:         3.8.11-200.fc18.x86_64
type:           libreport