$ git clone -n https://src.fedoraproject.org/rpms/python-pyvmomi.git /var/lib/mock/f39-build-1619490-38674/root/chroot_tmpdir/scmroot/python-pyvmomi
Cloning into '/var/lib/mock/f39-build-1619490-38674/root/chroot_tmpdir/scmroot/python-pyvmomi'...
$ git fetch origin 86fadd65f3687bc24db65dadfb7b08ebf2ed5bae:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pyvmomi
 * [new ref]         86fadd65f3687bc24db65dadfb7b08ebf2ed5bae -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 86fadd6 merge changelog