Undo on game with metadate_twiddle and level>1024 triggers error (mentions checkpoint)

[david-pfx]

Karoo: just walk down to the very bottom then undo a few times [12:58]Karoo:

title repro

sprite_size 5
runtime_metadata_twiddling

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OBJECTS
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Background 
#3f3f74

Player
yellow blue orange black red
.111.
.000.
44444
.444.
.3.3.

rock1
darkgray

smth
pink

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LEGEND
=======

@ = Player
. = Background
o = rock1
% = smth

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COLLISIONLAYERS
================

Background
smth
Player rock1

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RULES
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late [player smth] -> flickscreen 11x15

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WINCONDITIONS
==============

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LEVELS
=======

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[12:59]Karoo: you will see the metadata set midgame reset (in this case it will un-flickscreen) and the warning RUNTIME METADATA TWIDDLING: Reloaded level state that did not have saved metadata. Likely this state was recovered from a CHECKPOINT. Using the default metadata instead. [13:02]Karoo: my much more complicated game doesnt use flickscreen, instead it only twiddles again_interval, yet also throws this warning

[david-pfx]

Fixed. Undo diff compression did not save metadata.