$ git clone -n https://src.fedoraproject.org/rpms/rust-urlencoding.git /var/lib/mock/f45-build-46034-830/root/chroot_tmpdir/scmroot/rust-urlencoding
Cloning into '/var/lib/mock/f45-build-46034-830/root/chroot_tmpdir/scmroot/rust-urlencoding'...
$ git fetch origin ec1cee528f454f25a94687ddda3f6a47aa78215d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-urlencoding
 * [new ref]         ec1cee528f454f25a94687ddda3f6a47aa78215d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec1cee5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild