$ git clone -n https://src.fedoraproject.org/rpms/rust-predicates2.git /var/lib/mock/f38-build-side-42-init-devel-803460-28144/root/chroot_tmpdir/scmroot/rust-predicates2
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-803460-28144/root/chroot_tmpdir/scmroot/rust-predicates2'...
$ git fetch origin 54ce4550c99012cad02ef146126694af0cd7b720:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-predicates2
 * [new ref]         54ce4550c99012cad02ef146126694af0cd7b720 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 54ce455 Initial import (predicates 2 compat package)