$ git clone -n https://src.fedoraproject.org/rpms/rubygem-rake-compiler.git /var/lib/mock/f38-build-side-42-init-devel-647814-26439/root/chroot_tmpdir/scmroot/rubygem-rake-compiler
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-647814-26439/root/chroot_tmpdir/scmroot/rubygem-rake-compiler'...
$ git fetch origin 3f600724fc0ae42c679a32857b1cfba4676bc121:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rubygem-rake-compiler
 * [new ref]         3f600724fc0ae42c679a32857b1cfba4676bc121 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3f60072 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild