$ git clone -n https://src.fedoraproject.org/rpms/mail-notification.git /var/lib/mock/f41-build-772403-13505/root/chroot_tmpdir/scmroot/mail-notification
Cloning into '/var/lib/mock/f41-build-772403-13505/root/chroot_tmpdir/scmroot/mail-notification'...
$ git fetch origin 1bc5278e7c402fc4d78be3d2e1c61c22d31dc13e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mail-notification
 * [new ref]         1bc5278e7c402fc4d78be3d2e1c61c22d31dc13e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1bc5278 Eliminate use of obsolete %patchN syntax (#2283636)