Allow disabling copy_missing_tensors_from_source via env var, default enabled (#1623)
Signed-off-by: Xin He <xin3.he@intel.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Yi Liu <yi4.liu@intel.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>