The Create New Child collection (eg. create new child dataset) requires a unique identifier to be entered. The entry form preserves whitespace before and after the id value if entered. The white space should be trimmed prior to storing the new dataset.

Currently this is preserved and may lead to lookup problems, in particular during the thredds harvesting process which uses the identifier (eg. "persistent identifier") to identify parent datasets. If the parent persistent identifier contains whitespace (for example a leading tab character) the lookup fails.