[2.0.72] Rocket cargo request sends below custom minimum payload

[AntiElitz]

Description:
When “Custom minimum payload” is checked, rockets sometimes launch with cargo below the defined limit.

Steps to reproduce:

Load attached savegames.
Platform 201 LDS → Custom minimum payload checked with 200
Platform 301 BC → Custom minimum payload checked with 300
Trigger launches multiple times.

Observed result:
Sometimes 2×200 LDS and 2×300 BC are sent (correct).
Sometimes 1×200 LDS + 1×1 LDS (Payloads below the configured minimum) and 2×300 BC are sent.
Sometimes 2×200 LDS + 1×200 BC + 1×1 BC (Payloads below the configured minimum) are sent.
Each savegame includes one case.

Expected:
When Custom minimum payload is checked, rockets should never send loads smaller than the specified value.

[Rseding91]

Thanks for the report. This is now fixed for 2.1.