$ git clone -n https://src.fedoraproject.org/rpms/rust-pest_generator.git /var/lib/mock/f45-build-43796-807/root/chroot_tmpdir/scmroot/rust-pest_generator
Cloning into '/var/lib/mock/f45-build-43796-807/root/chroot_tmpdir/scmroot/rust-pest_generator'...
$ git fetch origin 6be180a765e5109aa01848e7b3d9b3bf2c3464be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pest_generator
 * [new ref]         6be180a765e5109aa01848e7b3d9b3bf2c3464be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6be180a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild