Gifbuilder using breakWidth/breakSpace: lineHeight depends on rendered text
When using breakWidth (and optionally breakSpace), the lineheight depends on the text which is rendered.
So generating 2 multi-line texts with completely identical settings may yield different results, e.g. when only one of the two strings contains characters with descenders (see attached example).
In my opinion, the lineheight for multiline text should not depend on the boundingbox of the given characters, but should depend on the configuration (font face, font size) - that's what we are used to.
(issue imported from #M14033)