Standard / 19115-3 / Fix indexing of maintenance date

[fxprunayre]

Element was dateOfNextUpdate in ISO19139 and is maintenanceDate in ISO19115-3

See https://github.com/geonetwork/core-geonetwork/blob/main/schemas/iso19115-3.2018/src/main/plugin/iso19115-3.2018/convert/ISO19139/mapping/core.xsl#L681-L682

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Quality Gate passed

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[jahow]

Thank you, looking good!

Out of curiosity, is there a place where the usage of this field (mmi:maintenanceDate) is used to describe the date of the next update?

I only found this: https://wiki.esipfed.org/MD_MaintenanceInformation

Which says that mmi:maintenanceDate is "Date information associated with maintenance of resource".

[fxprunayre]

Out of curiosity, is there a place where the usage of this field (mmi:maintenanceDate) is used to describe the date of the next update?

Indeed, it is part of ISO19115-3 maintenance info section and nextUpdate is one of the date type available to track the resource lifecycle cf. https://github.com/geonetwork/core-geonetwork/blob/main/schemas/iso19115-3.2018/src/main/plugin/iso19115-3.2018/loc/eng/codelists.xml#L113-L118

Example of usage https://sdi.eea.europa.eu/catalogue/srv/eng/catalog.search#/search?any=q(_exists_:maintenance.nextUpdateDate)