$ git clone -n https://src.fedoraproject.org/rpms/rust-pyo3-macros-backend0.16.git /var/lib/mock/f38-build-side-43-rust-devel-1413526-31444/root/chroot_tmpdir/scmroot/rust-pyo3-macros-backend0.16
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1413526-31444/root/chroot_tmpdir/scmroot/rust-pyo3-macros-backend0.16'...
$ git fetch origin b09eee8a712342a39216b265ba86661c54bc2aef:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pyo3-macros-backend0.16
 * [new ref]         b09eee8a712342a39216b265ba86661c54bc2aef -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b09eee8 Initial import (pyo3-macros-backend 0.16 compat package)