Regular expression in Row Filter chceck box KNIME 4.3.2

[MarekV]

I’ve wanted to use regular expressions in filtering several times.
This option is right on the screen.
Unfortunately KNIME does not show how it interpreted the expression.
That’s why I use https://regex101.com/ which visualizes the selection .
I moved this expression to KNIME and it didn’t work even though it worked correctly.
I always assumed that if I check the checkbox the expression would be applied.
Unfortunately this is not true because the expression e.g. “.[A-Z_0-9]+” creates “.[a_z_0-9]+”.
Therefore, you need to check the checkbox "case sensitive match " and only then it will start working.
I am writing this so that others know that such a small thing will make it impossible to use this option completely.
See picture .

[temesgen-dadi]

if the case sensitive match option is NOT checked, the expressions
.[A-Z_0-9]+
.[a-z_0-9]+
.[A-Za-z_0-9]+

will all have the same effect.