(I cannot remember if I already filed this, sorry!)

evolution-3.24.5-1.fc26.x86_64
evolution-data-server-3.24.6-1.fc26.x86_64
is stuck showing "Retrieving message "17077" in "whatever@example.com : INBOX/wmfall" forever in the status bar. Even after switching to offline mode:

$:acko\> gdb -p 2786
GNU gdb (GDB) Fedora 8.0.1-26.fc26
Attaching to process 2786
[New LWP 2792]
[New LWP 2793]
[New LWP 2794]
[New LWP 2795]
[New LWP 2802]
[New LWP 2829]
[New LWP 2830]
[New LWP 2831]
[New LWP 2834]
[New LWP 2850]
[New LWP 2851]
[New LWP 24593]
[New LWP 25346]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
0x00007f0626cd7acd in poll () at ../sysdeps/unix/syscall-template.S:84
84	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
(gdb) thread apply all bt full

+ Trace 238006

rax            0xfffffffffffffdfc	-516
rbx            0x562adaa07660	94742056564320
rcx            0x7f0626cd7acd	139664397531853
rdx            0x56	86
rsi            0x6	6
rdi            0x562adcf3b0b0	94742095573168
rbp            0x6	0x6
rsp            0x7ffe4450fa60	0x7ffe4450fa60
r8             0x7	7
r9             0x562adca1bf00	94742090202880
r10            0x562adabc9100	94742058406144
r11            0x293	659
r12            0x562adcf3b0b0	94742095573168
r13            0x56	86
r14            0x7f06313bfb80	139664572545920
r15            0x7	7
rip            0x7f0626cd7acd	0x7f0626cd7acd <poll+45>
eflags         0x293	[ CF AF SF IF ]
cs             0x33	51
ss             0x2b	43
ds             0x0	0
es             0x0	0
fs             0x0	0
gs             0x0	0
(gdb) list
79	#else
80	
81	/* This is a "normal" system call stub: if there is an error,
82	   it returns -1 and sets errno.  */
83	
84	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
85		ret
86	T_PSEUDO_END (SYSCALL_SYMBOL)
87	
88	#endif
(gdb)