$ git clone -n https://src.fedoraproject.org/rpms/pnm2ppa.git /var/lib/mock/f45-build-28707-632/root/chroot_tmpdir/scmroot/pnm2ppa
Cloning into '/var/lib/mock/f45-build-28707-632/root/chroot_tmpdir/scmroot/pnm2ppa'...
$ git fetch origin 01486c4d10b2b43576bc5ad4afac41783b4f1bbf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pnm2ppa
 * [new ref]         01486c4d10b2b43576bc5ad4afac41783b4f1bbf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 01486c4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild