$ git clone -n https://src.fedoraproject.org/rpms/rust-heapsize.git /var/lib/mock/f38-build-side-43-rust-devel-1413199-31443/root/chroot_tmpdir/scmroot/rust-heapsize
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1413199-31443/root/chroot_tmpdir/scmroot/rust-heapsize'...
$ git fetch origin 52373edc2e89fa0ef8ceccba7c5ca3d180f447dd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-heapsize
 * [new ref]         52373edc2e89fa0ef8ceccba7c5ca3d180f447dd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 52373ed Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild