fix: improve identifier escaping validation #15362

Job	Run time
Setup PHP Version for Code Coverage	2s
Others (8.2) / Sanity Tests	1m 41s
Others (8.4) / Sanity Tests	1m 41s
Others (8.5) / Sanity Tests	1m 36s
Others (8.3) / Sanity Tests	1m 26s
Upload coverage results to Coveralls	-1s
CacheLive	-1s
DatabaseLive	-1s
SeparateProcess	-1s
	6m 22s

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