$ git clone -n https://src.fedoraproject.org/rpms/xdg-desktop-portal-gnome.git /var/lib/mock/f40-build-804735-144605/root/chroot_tmpdir/scmroot/xdg-desktop-portal-gnome
Cloning into '/var/lib/mock/f40-build-804735-144605/root/chroot_tmpdir/scmroot/xdg-desktop-portal-gnome'...
$ git fetch origin bab19e2d196639d8238c99ae1f407130a79256e3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xdg-desktop-portal-gnome
 * [new ref]         bab19e2d196639d8238c99ae1f407130a79256e3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bab19e2 Update to 46.0