Fix memory corruption on filter text overflow #781

Job	Run time
lint_and_docs (ubuntu-22.04, 3.9, 20.x)	9m 30s
build_emscripten_wheel (ubuntu-22.04, x86_64, 3.9, 20.x)	17m 45s
build_js (ubuntu-22.04, 3.9, 20.x)	26m 19s
build_and_test_rust (ubuntu-22.04, x86_64, 20.x, false)	9m 58s
build_python (ubuntu-22.04, x86_64, 3.9, 20.x, false)	19m 13s
test_python (ubuntu-22.04, x86_64, 3.9, 20.x, false)	1m 13s
test_js (ubuntu-22.04, 3.9, 20.x)	5m 44s
build_and_test_jupyterlab (ubuntu-22.04, x86_64, 3.9, 20.x, false)	1m 21s
benchmark_python	0s
benchmark_js	0s
test_python_sdist	0s
publish	0s
	1h 31m 3s

Provide feedback