$ git clone -n https://src.fedoraproject.org/rpms/inkscape.git /var/lib/mock/f40-build-2600019-63084/root/chroot_tmpdir/scmroot/inkscape
Cloning into '/var/lib/mock/f40-build-2600019-63084/root/chroot_tmpdir/scmroot/inkscape'...
$ git fetch origin a424b65e82f538e7fae95adc73084f3dd711e1b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/inkscape
 * [new ref]         a424b65e82f538e7fae95adc73084f3dd711e1b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a424b65 Poppler rebuild.