$ git clone -n https://src.fedoraproject.org/rpms/xdg-desktop-portal-kde.git /var/lib/mock/f39-build-1629301-39538/root/chroot_tmpdir/scmroot/xdg-desktop-portal-kde
Cloning into '/var/lib/mock/f39-build-1629301-39538/root/chroot_tmpdir/scmroot/xdg-desktop-portal-kde'...
$ git fetch origin 035a661163673f1dfd34334d42e13e2f13f3bca5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xdg-desktop-portal-kde
 * [new ref]         035a661163673f1dfd34334d42e13e2f13f3bca5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 035a661 5.27.9