$ git clone -n https://src.fedoraproject.org/rpms/golang-gopkg-src-d-git-fixtures-3.git /var/lib/mock/f40-build-2595735-62745/root/chroot_tmpdir/scmroot/golang-gopkg-src-d-git-fixtures-3
Cloning into '/var/lib/mock/f40-build-2595735-62745/root/chroot_tmpdir/scmroot/golang-gopkg-src-d-git-fixtures-3'...
$ git fetch origin df840dcfcc91ba47c26ad637c8fb6887231ef163:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-gopkg-src-d-git-fixtures-3
 * [new ref]         df840dcfcc91ba47c26ad637c8fb6887231ef163 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df840dc Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild