#2747 Incorrect substituent position

[jblack-mestre]

Generic request

• PR name follows the pattern #1234 – issue name
• branch name does not contain '#'
• base branch (master or release/xx) is correct
• PR is linked with the issue
• task status changed to "Code review"
• code follows product standards
• regression tests updated

[jblack-mestre]

This is a problem with superatoms within cdxml files.

For some cdxml files, the nodes within a fragment are given arbitrary coordinates - i.e. coordinates that when rendered look wrong. I'm not sure why this happens; maybe it has to do with chemdraw and how it handles multiple pages. However, instead of using the coordinates of the nodes within the fragment for the superatom, the coordinates are taken from the parent node.