How to reproduce:
1. Open the attached project "GridMinmaxRepro"
2. In the "minmaxRepro" scene, enter Play mode
3. Observe the results
Expected results: All five rows show a green "PASS" and every blue minmax() track ends exactly at the white tick that marks its expected right edge
Actual results: Two of the five rows show a red "FAIL" - "minmax(50px, 100px) 1fr" gives 50px + 350px instead of 100px + 300px, and "minmax(auto, 100px) 1fr" gives 0px + 400px instead of 100px + 300px, so the minmax() track is frozen at its minimum
Reproducible with: 6000.7.0a5
Can't test with: 6000.0.81f1, 6000.5.9f1, 6000.6.0b9, 6000.7.0a4 (No feature)
Reproducible on: macOS Tahoe 26.6 (M1 Max)
Not reproducible on: No other environment tested