I notice that when using the magritte list composition
tool
duplicates are allowed but it cant handle moving idividual items up
and down reliably.
On investigation it appears that the reason is due to moveUp: and
moveDown: using indexOf: rather than identityIndexOf:
I am not sure whether changing this behaviour would break other
things.
I guess you are right, using #identityIndexOf: would be better.
Please commit your change.
Cheers,
Lukas
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Lukas Renggli
http://www.lukas-renggli.ch