$ git clone -n https://src.fedoraproject.org/rpms/python-pyvex.git /var/lib/mock/f39-build-1722093-41229/root/chroot_tmpdir/scmroot/python-pyvex
Cloning into '/var/lib/mock/f39-build-1722093-41229/root/chroot_tmpdir/scmroot/python-pyvex'...
$ git fetch origin 34e954397f46a5f3dd86bf5eb0733f7c21f4339d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyvex
 * [new ref]         34e954397f46a5f3dd86bf5eb0733f7c21f4339d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 34e9543 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild