Fix indices in IDE-SECIR model that have not been adapted to multiple age groups

[annawendler]

Bug description

When adding age resolution to the IDE-SECIR model, some indices have not been adapted accordingly so that they always refer to the first age group which leads to incorrect results. This is the case in lines

memilio/cpp/models/ide_secir/model.cpp

Line 307 in 616cf03

populations[Eigen::Index(0)][Eigen::Index(InfectionState::Dead)];

and

memilio/cpp/models/ide_secir/model.cpp

Line 455 in 616cf03

transitions[i + 1][idx_IncomingFlow];

.

Version

Any

To reproduce

Use an age-resolved IDE-SECIR model.

Relevant log output

Add any relevant information, e.g. used compiler, screenshots.

Checklist

• Attached labels, especially loc:: or model:: labels.
• Linked to project