THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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These classes were used as placeholders for further optimizations in Component's size but were never finished.
o.a.w.Component#onMarkupAttached() has been dropped in favour of o.a.w.Component#onInitialize().
Both methods had the same semantics. #onMarkupAttached() was the one less used and thus got dropped.
IInitializers are initialized before Application#init()
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