+++ This bug was initially created as a clone of Bug #1489297 +++

As noted in bug 1489297 comment 22, queries in bug 1489297 comment 21 have zero hits for current crashes, eg

• https://crash-stats.mozilla.com/search/?memory_error_correction=None&date=%3E%3D2019-03-16T09%3A59%3A00.000Z&date=%3C2019-09-16T09%3A59%3A00.000Z&_facets=signature&page=1&_sort=-date&_columns=date&_columns=signature&_columns=product&_columns=version&_columns=build_id&_columns=platform#facet-signature
• https://crash-stats.mozilla.com/search/?memory_error_correction=Single-bit%20ECC&date=%3E%3D2019-03-16T09%3A59%3A00.000Z&date=%3C2019-09-16T09%3A59%3A00.000Z&_facets=signature&page=1&_sort=-date&_columns=date&_columns=signature&_columns=product&_columns=version&_columns=build_id&_columns=platform#facet-signature

In fact, all 7 terms used for memory_error_correction give no results

I've checked locally that the ´MemoryErrorCorrection´ annotations is being added correctly to crashes on Windows. As it turns out it was just an issue with the queries, using ´is´ instead of ´has terms´ to check for entries:

https://crash-stats.mozilla.com/search/?memory_error_correction=%3DNone&date=%3E%3D2019-03-16T09%3A59%3A00.000Z&date=%3C2019-09-16T09%3A59%3A00.000Z&_facets=signature&_sort=-date&_columns=date&_columns=signature&_columns=product&_columns=version&_columns=build_id&_columns=platform#facet-signature

https://crash-stats.mozilla.com/search/?memory_error_correction=%3DMulti-bit%20ECC&date=%3E%3D2019-03-16T09%3A59%3A00.000Z&date=%3C2019-09-16T09%3A59%3A00.000Z&_facets=signature&_sort=-date&_columns=date&_columns=signature&_columns=product&_columns=version&_columns=build_id&_columns=platform#facet-signature

Note that there are still lots of crash reports w/o that annotation but they're coming from old versions that didn't have it, are for non-Windows installations (which also don't have it) or have incomplete annotations so they're missing other stuff too.