$ git clone -n https://src.fedoraproject.org/rpms/rust-rand_core0.5.git /var/lib/mock/f38-build-side-43-rust-devel-1414316-31448/root/chroot_tmpdir/scmroot/rust-rand_core0.5
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1414316-31448/root/chroot_tmpdir/scmroot/rust-rand_core0.5'...
$ git fetch origin 1963f044b0e78ae873e14be50c148e2282b1250f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rand_core0.5
 * [new ref]         1963f044b0e78ae873e14be50c148e2282b1250f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1963f04 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild