Personnel shared between patients is perfered over personnel of higher priority

[Nils1729]

This is an anomaly in the assignment of treatments in simulated regions.

How to reproduce

Given two simulated regions A and B with each one leadership behavior and one treatment behavior.

• Add 2 yellow (SK II) patients to each region.
• Personnel: Add 1 GF and x Notartz to each region with x >= 3.
• To region B, add 1 RettSan
• Start the exercise

Observed behavior

After some time, treatment will be secured in region A with GF as leader, 2 Notartz treating each patient 100% and one treating each 50%.

In region B, GF is leader, the RettSan is treating each patient with 50% and one Notarzt does the same. Despite the two excess Notarzt, treatment will never be secured because the SK II patients need exclusive treatment.

Expected behavior

Because region B has more personnel than region A, and the latter one has secured treatment, one could assume region B should also secure treatment.

The underlying problem is in the activities/reassign-treatment->findAssignablePersonnel function. Because yellow needs a RettSan, the partial RettSan is preferred over exclusive Notarzt, even when exclusive treatment is required for securing.