Sorry, clicked too fast. It was originally reported in Red Hat bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=614991

ABRT shows the following backtrace here:
warning: core file may not match specified executable file.
[New Thread 2428]
Core was generated by `/usr/libexec/mission-control-5'.
Program terminated with signal 11, Segmentation fault.
#0  mcd_service_run (self=0x0) at mcd-service.c:195
195	mcd-service.c: No such file or directory.
	in mcd-service.c

Thread 1 (Thread 2428):
#0  mcd_service_run (self=0x0) at mcd-service.c:195
No locals.
#1  0x000000000040b9e8 in main (argc=<value optimized out>, 
    argv=<value optimized out>) at mc-server.c:81
        mcd = 0x0
From                To                  Syms Read   Shared Object Library
0x0000003856a090f0  0x0000003856a19b78  Yes         /usr/lib64/libmcclient-5.4.3.so
0x000000386ea29eb0  0x000000386eac2758  Yes         /usr/lib64/libtelepathy-glib.so.0
0x000000385d619b60  0x000000385d6812c8  Yes         /lib64/libgio-2.0.so.0.2400.1
0x000000385b601080  0x000000385b601fc8  Yes         /lib64/libgmodule-2.0.so.0.2400.1
0x0000003864e09060  0x0000003864e19878  Yes         /usr/lib64/libdbus-glib-1.so.2
0x000000385ba07090  0x000000385ba2e4c8  Yes         /lib64/libdbus-1.so.3
0x0000003856e05640  0x0000003856e10e48  Yes         /lib64/libpthread-2.12.so
0x000000385a608d20  0x000000385a632a78  Yes         /lib64/libgobject-2.0.so.0.2400.1
0x0000003859a01590  0x0000003859a029f8  Yes         /lib64/libgthread-2.0.so.0.2400.1
0x0000003857a02140  0x0000003857a055a8  Yes         /lib64/librt-2.12.so
0x000000386b006d70  0x000000386b015bd8  Yes         /usr/lib64/libgnome-keyring.so.0
0x0000003857e155c0  0x0000003857e99d58  Yes         /lib64/libglib-2.0.so.0.2400.1
0x000000385661e9a0  0x000000385672b820  Yes         /lib64/libc-2.12.so
0x0000003857200de0  0x0000003857201998  Yes         /lib64/libdl-2.12.so
0x00000038592038c0  0x0000003859212528  Yes         /lib64/libresolv-2.12.so
0x0000003857601ef0  0x000000385760d228  Yes         /lib64/libz.so.1
0x0000003858605550  0x0000003858615038  Yes         /lib64/libselinux.so.1
0x0000003856200af0  0x0000003856218904  Yes         /lib64/ld-2.12.so
0x0000003866606d00  0x0000003866650078  Yes         /lib64/libgcrypt.so.11
0x0000003865e007f0  0x0000003865e00d58  Yes         /lib64/libgpg-error.so.0
$1 = 0x0
$2 = 0x0
rax            0x0	0
rbx            0x0	0
rcx            0x33	51
rdx            0x20c30a0	34353312
rsi            0x20d4400	34423808
rdi            0x0	0
rbp            0x0	0x0
rsp            0x7fff05893ae8	0x7fff05893ae8
r8             0x10	16
r9             0x0	0
r10            0xa0	160
r11            0x1	1
r12            0x40b860	4241504
r13            0x7fff05893bd0	140733286267856
r14            0x0	0
r15            0x0	0
rip            0x40ba50	0x40ba50 <mcd_service_run>
eflags         0x10206	[ PF IF RF ]
cs             0x33	51
ss             0x2b	43
ds             0x0	0
es             0x0	0
fs             0x0	0
gs             0x0	0
Dump of assembler code for function mcd_service_run:
=> 0x000000000040ba50 <+0>:	mov    0x18(%rdi),%rdi
   0x000000000040ba54 <+4>:	jmpq   0x40b6a8 <g_main_loop_run@plt>
End of assembler dump.

Looks like it was a SELinux issue. Sorry for the noise.