f:format.replace does not work if used in inline syntax

[christophrunkel]

The following syntax used to work in Typo3 11.5 / VHS 6.0.3

<div id="c{data.uid}" class="frame {data.tx_bsdist_customcss} frame-{v:format.replace(substring: '__', content: '{data.frame_class}', replacement: ' ')}>

In Typo3 12.4 this fails, i have set a variable first, then use it inline. Not critical for me, but an awful lot of templates have to be checked and i am not sure, this works in all the cases:

This is the workaround:

<f:variable name="frameclasses"><v:format.replace substring="__" replacement=" ">{data.frame_class}</v:format.replace></f:variable>
<div id="c{data.uid}" class="frame layoutdefault yyy frame-**{frameclasses}**>

Would be nice if the inline syntax would work again.