$ git clone -n https://src.fedoraproject.org/rpms/rust-quick-error1 /var/lib/mock/f42-build-3453361-45488/root/chroot_tmpdir/scmroot/rust-quick-error1
Cloning into '/var/lib/mock/f42-build-3453361-45488/root/chroot_tmpdir/scmroot/rust-quick-error1'...
$ git fetch origin b814d51f52170aa902f5c0d5f3132343a4adc8cf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-quick-error1
 * [new ref]         b814d51f52170aa902f5c0d5f3132343a4adc8cf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b814d51 Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild