Describe the bug
Some sources have missing ZTF thumbnails on scanning and source pages but there are new photometry points in light curves (eg. https://fritz.science/source/ZTF18aaqkywr). The thumbnails are there on the alerts page but look like bad subtractions. Sources for which this is happening have old ZTF names from some spurious detections in their history.
Describe the bug Some sources have missing ZTF thumbnails on scanning and source pages but there are new photometry points in light curves (eg. https://fritz.science/source/ZTF18aaqkywr). The thumbnails are there on the alerts page but look like bad subtractions. Sources for which this is happening have old ZTF names from some spurious detections in their history.
To Reproduce Steps to reproduce the behavior:
Expected behavior Thumbnails should not be missing in the scanning page (candidates) when new photometry is visible.
Screenshots
Copied from https://github.com/fritz-marshal/fritz-beta-feedback/issues/116