$ git clone -n https://src.fedoraproject.org/rpms/rust-assert2.git /var/lib/mock/f45-build-40211-769/root/chroot_tmpdir/scmroot/rust-assert2
Cloning into '/var/lib/mock/f45-build-40211-769/root/chroot_tmpdir/scmroot/rust-assert2'...
$ git fetch origin e1b38b568f259d1e9967a5ec72771cc6728ac51f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-assert2
 * [new ref]         e1b38b568f259d1e9967a5ec72771cc6728ac51f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1b38b5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild