Jonathan Desrosiers 28022ebac7 Tests: Reset the $wp_sitemap global after each test, so that sitemaps are re-initialized when the next test runs.
This ensures consistent results in query var tests, regardless of whether they are run in isolation or as part of a larger group of tests.

Props pbiron, peterwilsoncc.
Merges [48908] to the 5.5 branch.
Fixes #51154.

git-svn-id: https://develop.svn.wordpress.org/branches/5.5@48914 602fd350-edb4-49c9-b593-d223f7449a82
2020-08-31 17:51:23 +00:00
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