[R] Lattice: key does not accept German umlaute

[Bernd Weiss]

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library(lattice)

## works as expected
xyplot(1~1, key = list(text = list(c("Maenner"))))

## works as expected
xyplot(1~1, key = list(text = list(c("Maenner"))), xlab = "M\344nner")

## gives an error
xyplot(1~1, key = list(text = list(c("M\344nner"))))

Is this a bug?

TIA,

Bernd

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