$ git clone -n https://src.fedoraproject.org/rpms/golang-github-geertjohan-incremental.git /var/lib/mock/f45-build-11930-436/root/chroot_tmpdir/scmroot/golang-github-geertjohan-incremental
Cloning into '/var/lib/mock/f45-build-11930-436/root/chroot_tmpdir/scmroot/golang-github-geertjohan-incremental'...
$ git fetch origin 2974d8384d8931abf79e2baa0047eec79ade7407:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-geertjohan-incremental
 * [new ref]         2974d8384d8931abf79e2baa0047eec79ade7407 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2974d83 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild