$ git clone -n https://src.fedoraproject.org/rpms/powerline-go.git /var/lib/mock/f38-build-side-42-init-devel-678608-26702/root/chroot_tmpdir/scmroot/powerline-go
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-678608-26702/root/chroot_tmpdir/scmroot/powerline-go'...
$ git fetch origin 2a3ad14d2b2047f08a6569276ef86954008057a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/powerline-go
 * [new ref]         2a3ad14d2b2047f08a6569276ef86954008057a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2a3ad14 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild