[2.0.18] items could stuck in underground belt in rare case (minor)

[hairintd]

How to reproduce (see video): https://drive.google.com/file/d/1IZSFDh ... sp=sharing

1. have a underground belt
2. add single part of new one between ends of the first belt
3. rotate enter of outer belt
4. remove added inner belt part (check item count in belt at the right)

all items in belt have stuck until you deconstruct belt, or place another and rotate it with reverse order (see video)

save file attached