$ git clone -n https://src.fedoraproject.org/rpms/xdg-desktop-portal-kde.git /var/lib/mock/f40-build-788752-135315/root/chroot_tmpdir/scmroot/xdg-desktop-portal-kde
Cloning into '/var/lib/mock/f40-build-788752-135315/root/chroot_tmpdir/scmroot/xdg-desktop-portal-kde'...
$ git fetch origin bad7cd979ca5109e9f2c2a3dc7088121f429b81b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xdg-desktop-portal-kde
 * [new ref]         bad7cd979ca5109e9f2c2a3dc7088121f429b81b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bad7cd9 6.0.0