Made revision scene ID nullable to facilitate scene removal.

migrations/20241016171648_revision_nullable.js

@@ -0,0 +1,15 @@
+exports.up = async (knex) => {
+	await knex.schema.alterTable('scenes_revisions', (table) => {
+		table.integer('scene_id')
+			.nullable()
+			.alter();
+	});
+};
+
+exports.down = async (knex) => {
+	await knex.schema.alterTable('scenes_revisions', (table) => {
+		table.integer('scene_id')
+			.notNullable()
+			.alter();
+	});
+};