2 ==79386==ERROR: AddressSanitizer: heap-use-after-free on address 0x60700007dc08 at pc 0x000000518dcc bp 0x7fffffff0480 sp 0x7fffffff0478
  3 READ of size 8 at 0x60700007dc08 thread T0
  4     #0 0x518dcb in mutt_clear_threads /usr/home/gahr/github/neomutt/mutt_thread.c:601:21
  5     #1 0x3fd37e in ctx_mailbox_changed /usr/home/gahr/github/neomutt/context.c:267:7
  6     #2 0x4cdaf4 in mutt_mailbox_changed /usr/home/gahr/github/neomutt/mailbox.c:534:3
  7     #3 0x52cf0e in mx_fastclose_mailbox /usr/home/gahr/github/neomutt/mx.c:386:3
  8     #4 0x52dba5 in mx_mbox_close /usr/home/gahr/github/neomutt/mx.c:549:5
  9     #5 0x606b37 in mutt_write_fcc /usr/home/gahr/github/neomutt/sendlib.c:3327:3
 10     #6 0x5e5249 in postpone_message /usr/home/gahr/github/neomutt/send.c:1691:7
 11     #7 0x5dd944 in ci_send_message /usr/home/gahr/github/neomutt/send.c:2272:11
 12     #8 0x4911e0 in mutt_index_menu /usr/home/gahr/github/neomutt/index.c:3205:9
 13     #9 0x4da59c in main /usr/home/gahr/github/neomutt/main.c:1217:7
 14     #10 0x2eb11a in _start /usr/src/lib/csu/amd64/crt1.c:76:7