$ git clone -n https://src.fedoraproject.org/rpms/lxrandr.git /var/lib/mock/f45-build-17867-505/root/chroot_tmpdir/scmroot/lxrandr
Cloning into '/var/lib/mock/f45-build-17867-505/root/chroot_tmpdir/scmroot/lxrandr'...
$ git fetch origin 3bfcc252d37f28fafd06d68130442f20b90d5375:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxrandr
 * [new ref]         3bfcc252d37f28fafd06d68130442f20b90d5375 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3bfcc25 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild