[Checkins] [zopefoundation/Products.ZCatalog] 15578a: Add support for `not` queries in the `UUIDIndex`

[Víctor Fernández de Alba]

  Branch: refs/heads/uidindexnotsupport
  Home:   https://github.com/zopefoundation/Products.ZCatalog
  Commit: 15578ac43f276b4155d159836fba308da6e4a315
      https://github.com/zopefoundation/Products.ZCatalog/commit/15578ac43f276b4155d159836fba308da6e4a315
  Author: Victor Fernandez de Alba <sneridagh at gmail.com>
  Date:   2020-04-17 (Fri, 17 Apr 2020)

  Changed paths:
    M CHANGES.rst
    M src/Products/PluginIndexes/UUIDIndex/UUIDIndex.py
    M src/Products/PluginIndexes/UUIDIndex/tests.py

  Log Message:
  -----------
  Add support for `not` queries in the `UUIDIndex`