$ git clone -n https://src.fedoraproject.org/rpms/golang-github-emersion-smtp.git /var/lib/mock/f38-build-side-42-init-devel-838206-28400/root/chroot_tmpdir/scmroot/golang-github-emersion-smtp
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-838206-28400/root/chroot_tmpdir/scmroot/golang-github-emersion-smtp'...
$ git fetch origin 86fd2f32b80831dcd608eb6d4052a7e0fe1b3759:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-emersion-smtp
 * [new ref]         86fd2f32b80831dcd608eb6d4052a7e0fe1b3759 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 86fd2f3 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild