Only attempt $result array access if array not empty.

[Mark-PAS]

• Resolves: # [Bug]: "Undefined array key 0" when 'pwdpolicysubentry', 'pwdgraceusetime', 'pwdreset', 'pwdchangedtime' not exist #53713

Summary

Only attempt $result array access if array not empty.

TODO

• ...

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[come-nc]

@Mark-PAS Could you amend your commit to add a sign-off to please DCO?
You can use git option --signoff for that.

[Mark-PAS]

@Mark-PAS Could you amend your commit to add a sign-off to please DCO? You can use git option --signoff for that.

Done.

[come-nc]

Failures not related, good for force merge.

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[welcome]

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[joshtrichards]

/backport to stable31