FIX Prevent vacuum from running multiple times during test runs

_config/dev.yml

@@ -0,0 +1,8 @@
+---
+Name: postgrestest
+---
+SilverStripe\Core\Injector\Injector:
+  SilverStripe\Dev\State\SapphireTestState:
+    properties:
+      States:
+        disablepostgresvacuum: '%$SilverStripe\PostgreSQL\Dev\State\DisableVacuumState'

code/Dev/State/DisableVacuumState.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace SilverStripe\PostgreSQL\Dev\State;
+
+use SilverStripe\Core\Config\Config;
+use SilverStripe\Dev\SapphireTest;
+use SilverStripe\Dev\State\TestState;
+use SilverStripe\PostgreSQL\PostgreSQLSchemaManager;
+
+class DisableVacuumState implements TestState
+{
+    /**
+     * Called on setup
+     *
+     * @param SapphireTest $test
+     */
+    public function setUp(SapphireTest $test)
+    {
+        // TODO: Implement setUp() method.
+    }
+
+    /**
+     * Called on tear down
+     *
+     * @param SapphireTest $test
+     */
+    public function tearDown(SapphireTest $test)
+    {
+        // TODO: Implement tearDown() method.
+    }
+
+    /**
+     * Called once on setup
+     *
+     * @param string $class Class being setup
+     */
+    public function setUpOnce($class)
+    {
+        Config::modify()->set(PostgreSQLSchemaManager::class, 'check_and_repair_on_build', false);
+    }
+
+    /**
+     * Called once on tear down
+     *
+     * @param string $class Class being torn down
+     */
+    public function tearDownOnce($class)
+    {
+        // TODO: Implement tearDownOnce() method.
+    }
+}