$ git clone -n https://src.fedoraproject.org/rpms/rust-lexical-core.git /var/lib/mock/f38-build-side-43-rust-devel-1410857-31423/root/chroot_tmpdir/scmroot/rust-lexical-core
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1410857-31423/root/chroot_tmpdir/scmroot/rust-lexical-core'...
$ git fetch origin c43549c4e130ad29958cfce9a94936f21f4213a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lexical-core
 * [new ref]         c43549c4e130ad29958cfce9a94936f21f4213a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c43549c Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild