$ git clone -n https://src.fedoraproject.org/rpms/rust-lv2.git /var/lib/mock/f45-build-43074-799/root/chroot_tmpdir/scmroot/rust-lv2
Cloning into '/var/lib/mock/f45-build-43074-799/root/chroot_tmpdir/scmroot/rust-lv2'...
$ git fetch origin 293ef43fa11d125a86b1392e29292c8103873cda:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lv2
 * [new ref]         293ef43fa11d125a86b1392e29292c8103873cda -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 293ef43 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild