$ git clone -n https://src.fedoraproject.org/rpms/mingw-portablexdr.git /var/lib/mock/f45-build-18647-525/root/chroot_tmpdir/scmroot/mingw-portablexdr
Cloning into '/var/lib/mock/f45-build-18647-525/root/chroot_tmpdir/scmroot/mingw-portablexdr'...
$ git fetch origin ec8dbf15a377a62f0157a0b9a788fb26f7d89d8f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-portablexdr
 * [new ref]         ec8dbf15a377a62f0157a0b9a788fb26f7d89d8f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec8dbf1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild