$ git clone -n https://src.fedoraproject.org/rpms/rust-gimoji.git /var/lib/mock/f40-build-781356-131566/root/chroot_tmpdir/scmroot/rust-gimoji
Cloning into '/var/lib/mock/f40-build-781356-131566/root/chroot_tmpdir/scmroot/rust-gimoji'...
$ git fetch origin 96fb668ed3bf30905f21a02ad7ced560bbc663d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gimoji
 * [new ref]         96fb668ed3bf30905f21a02ad7ced560bbc663d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96fb668 Update to version 0.7.3