$ git clone -n https://src.fedoraproject.org/rpms/xschem.git /var/lib/mock/f45-build-39298-733/root/chroot_tmpdir/scmroot/xschem
Cloning into '/var/lib/mock/f45-build-39298-733/root/chroot_tmpdir/scmroot/xschem'...
$ git fetch origin 0b0681c2a72c7a16423e35846a114d1e812acd18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xschem
 * [new ref]         0b0681c2a72c7a16423e35846a114d1e812acd18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0b0681c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild