$ git clone -n https://src.fedoraproject.org/rpms/microcode_ctl.git /var/lib/mock/f38-build-side-42-init-devel-571984-25915/root/chroot_tmpdir/scmroot/microcode_ctl
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-571984-25915/root/chroot_tmpdir/scmroot/microcode_ctl'...
$ git fetch origin e5c966e15b46056cc1533f211b056293ae0e335e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/microcode_ctl
 * [new ref]         e5c966e15b46056cc1533f211b056293ae0e335e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e5c966e Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild