Git commits in Moodle 3.7.3 by Matteo Scaramuccia

commit 429de834fac2c9c60774f2807868e5865a478564
Author: Matteo Scaramuccia <moodle@matteoscaramuccia.com>
Date:   Mon, 20 May 2019 02:29:20 +0800
Tag:    v3.7.3

MDL-65811 database: Fix subsetting in MSSQL