Adds preserve order flag to JointPositionToLimitsAction

[renezurbruegg]

Description

Adds preserve_order flag to JointPositionToLimitsActionCfg

Type of change

• New feature (non-breaking change which adds functionality)

Screenshots

Please attach before and after screenshots of the change if applicable.

Checklist

• I have read and understood the contribution guidelines
• I have run the pre-commit checks with ./isaaclab.sh --format
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• I have updated the changelog and the corresponding version in the extension's config/extension.toml file
• I have added my name to the CONTRIBUTORS.md or my name already exists there

[ooctipus]

The changes looks good to me, though can you share what bug you went into without it?

[Mayankm96]

Thanks!

[renezurbruegg]

The changes looks good to me, though can you share what bug you went into without it?

Without the preserving order flag, the order of the joints in the action term are defined by the internal parsing of physx.
So e,g, providing ["index_q1", "middle_q1", "ring_q1"] as joint expressions (with preserve_order=False, which is the default), can lead to the action term internally using ["ring_q1", "middle_q1", "index_q1"] as joint order.