Tests

[BUGFIX] BackendPreview: Check array before access in fluid #632

Job	Run time
Xliff linter	21s
PHP linter (8.1)	8s
Code quality checks (composer:normalize, 8.1)	17s
PHP linter (8.2)	8s
Code quality frontend checks (style)	19s
Code quality checks (composer:normalize, 8.2)	20s
Code quality checks (json:lint, 8.1)	31s
Code quality checks (json:lint, 8.2)	18s
Code quality checks (php:cs-fixer, 8.1)	25s
Code quality checks (php:cs-fixer, 8.2)	33s
Code quality checks (php:sniff, 8.1)	18s
Code quality checks (php:sniff, 8.2)	18s
Code quality checks (php:stan, 8.1)	25s
Code quality checks (php:stan, 8.2)	46s
Code quality checks (ts:lint, 8.1)	21s
Code quality checks (ts:lint, 8.2)	15s
Code quality checks (yaml:lint, 8.1)	23s
Code quality checks (yaml:lint, 8.2)	16s
Tests (8.1)	16s
Tests (8.2)	15s
	6m 53s

Provide feedback