$ git clone -n https://src.fedoraproject.org/rpms/golang-github-lestrrat-codegen.git /var/lib/mock/f45-build-12154-439/root/chroot_tmpdir/scmroot/golang-github-lestrrat-codegen
Cloning into '/var/lib/mock/f45-build-12154-439/root/chroot_tmpdir/scmroot/golang-github-lestrrat-codegen'...
$ git fetch origin df043f2562c12be3449aeece15c3bde9b07bb9a1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-lestrrat-codegen
 * [new ref]         df043f2562c12be3449aeece15c3bde9b07bb9a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df043f2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild