$ git clone -n https://src.fedoraproject.org/rpms/rust-data-encoding-macro-internal.git /var/lib/mock/f45-build-41229-780/root/chroot_tmpdir/scmroot/rust-data-encoding-macro-internal
Cloning into '/var/lib/mock/f45-build-41229-780/root/chroot_tmpdir/scmroot/rust-data-encoding-macro-internal'...
$ git fetch origin 5f90f02842bbd797341049f0ceb306cfa5550a24:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-data-encoding-macro-internal
 * [new ref]         5f90f02842bbd797341049f0ceb306cfa5550a24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5f90f02 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild