$ git clone -n https://src.fedoraproject.org/rpms/rust-pyo3-macros.git /var/lib/mock/f39-build-1726744-41240/root/chroot_tmpdir/scmroot/rust-pyo3-macros
Cloning into '/var/lib/mock/f39-build-1726744-41240/root/chroot_tmpdir/scmroot/rust-pyo3-macros'...
$ git fetch origin ecf92ee5cd958fb3d004fda2cf1ec7c93be35411:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pyo3-macros
 * [new ref]         ecf92ee5cd958fb3d004fda2cf1ec7c93be35411 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ecf92ee Update to version 0.20.0; Fixes RHBZ#2243415