$ git clone -n https://src.fedoraproject.org/rpms/netpbm.git /var/lib/mock/f40-build-2220526-52664/root/chroot_tmpdir/scmroot/netpbm
Cloning into '/var/lib/mock/f40-build-2220526-52664/root/chroot_tmpdir/scmroot/netpbm'...
$ git fetch origin 4a35bcd0658dc308f90c6d119142255c015fea8f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/netpbm
 * [new ref]         4a35bcd0658dc308f90c6d119142255c015fea8f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a35bcd Rebuild for jasper 4.1