After manually editing a regular expression (regex), which of the following statements is true?
Select an option, then click Submit answer.
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Changes made manually can be reverted in the Field Extractor (FX) UI.
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It is no longer possible to edit the field extraction in the Field Extractor (FX) UI.
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It is not possible to manually edit a regular expression (regex) that was created using the Field Extractor (FX) UI.
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The Field Extractor (FX) UI keeps its own version of the field extraction in addition to the one that was manually edited.