Fix inverted track sizing conditional #2490

Job	Run time
Build [debug feature]	15s
Build Benchmarks (w/ yoga)	56s
Build Benchmarks	35s
Build Examples	46s
MSRV Build [Rust 1.65]	1m 27s
Clippy	42s
Documentation	20s
Test Fixture Formatting	9s
Rustfmt	15s
Markdown Lint	4s
Test Suite [alloc + all algorithms]	1m 1s
Test Suite [std + block)]	1m 3s
Test Suite [default features]	59s
Test Suite [default except content_size]	1m 6s
Test Suite [default + serde]	1m 6s
Test Suite [std + flexbox]	1m 2s
Test Suite [std + flexbox + detailed_layout_info]	1m 8s
Test Suite [std + grid]	1m 4s
Test Suite [std + grid + detailed_layout_info]	1m 4s
Test Suite [alloc + no algorithms]	1m 8s
Test Suite [std (no algorithms)]	1m 2s
Test Suite [no features]	1m 4s
	18m 16s

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