[posila] [1.1.1] Crash selecting new contents for blueprint: TransportBeltConnectable::drawStartingPiece

[MereInterest]

Mods used

• Base Mod v1.1.1
• Creative Mod v1.7.1 (https://mods.factorio.com/mod/creative-mod)

Steps to reproduce

1. Load attached save game "creative_mode.zip"
2. Create a blueprint with Alt-B, make a selection, confirm blueprint save, then add blueprint to hotbar.
3. Right-click blueprint in hotbar to open
4. Left-click "select new contents for the blueprint"
5. Make a selection that includes loaders
6. Right-click on at least one loader to exclude it from the blueprint
7. Click confirm to save blueprint
8. Right-click blueprint in hotbar to re-open

Expected behavior: Blueprint is opened, with right-clicked loader excluded.
Observed behavior: Game crashes when re-opening blueprint.

[Loewchen]

Ref.: 91710

[Ajedi32]

This issue appears to still be occurring in 1.1.2. Rather hard to reproduce consistently, but I got it to occur using the following steps:

1. Start Factorio
2. Create a new scenario with default settings
3. Place an express loader connected to an express belt
4. Create a new blueprint containing those machines
5. In the blueprint editor, right-click to remove the express loader from the blueprint
6. Place the newly created blueprint on the hotbar
7. Right-click to view the newly created blueprint

[posila]

Thanks for the report and repro steps.
Fixed for 1.1.3