$ git clone -n https://src.fedoraproject.org/rpms/crash.git /var/lib/mock/f31-build-57853-28388/root/chroot_tmpdir/scmroot/crash
Cloning into '/var/lib/mock/f31-build-57853-28388/root/chroot_tmpdir/scmroot/crash'...
$ git reset --hard 18cf5ed6290205ad1772d5135349a84aa212ed7c
HEAD is now at 18cf5ed Update to latest upstream release