$ git clone -n https://src.fedoraproject.org/rpms/rust-pxfm.git /var/lib/mock/f45-build-44112-810/root/chroot_tmpdir/scmroot/rust-pxfm
Cloning into '/var/lib/mock/f45-build-44112-810/root/chroot_tmpdir/scmroot/rust-pxfm'...
$ git fetch origin e24aabe8d0aa7627b47c0e9929e70782b59007ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pxfm
 * [new ref]         e24aabe8d0aa7627b47c0e9929e70782b59007ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e24aabe Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild