Fix issue with scenes exported in compatibility mode
When exporting from Spine 4.0 in Spine 3.8 compatibility mode, the version string is something like 3.8-from-4.0.47
, which trips up the Integer.parseInt(scene.spineVersionParts[1])
calls because they try to parse 8-from-4 as a number.
Thanks to @dapetcu21 for the contribution!