Related ressources are not displayed for (some) maps

[gannebamm]

Expected Behavior

Maps show related ressources. Datasets show in which maps they are used.
A working example is shown here: https://atlas.thuenen.de/catalogue/#/search/?f=map&d=55%3Bmap

Actual Behavior

a: Some maps do not show related ressources, or
b: do show only some of them.

Steps to Reproduce the Problem

a. https://atlas.thuenen.de/catalogue/#/search/?f=map&d=243%3Bmap
b. https://atlas.thuenen.de/catalogue/#/search/?f=map&d=72%3Bmap

Specifications

• GeoNode version: https:/Thuenen-GeoNode-Development/thuenen_atlas/releases/tag/v4.2.5

[gannebamm]

Is related to #45 where new map layer objects were created but than deleted by me. These duplicates had the proper structure. See these API responses:

• without proper maplayers:
  https://atlas.thuenen.de/api/v2/maps/71/

• with proper maplayers:
  https://atlas.thuenen.de/api/v2/maps/55/

@vineetasharma105 will fix those manually

[ridoo]

Vineeta does a manual clean up currently .. No root-cause found, yet.