Fix Issue with Comparing Multiple Segments in eCommerce Reports

[Chardonneaur]

Hi Team,

Description:

When comparing at least two segments within the eCommerce reports, only the main segment appears in the reports. However, when performing the same comparison in other report categories, such as Acquisition or Behaviour, both segments are displayed as expected. This inconsistency impacts the usability of the eCommerce reports for detailed segment comparisons.

Steps to reproduce:

• Open the eCommerce reports in Matomo.
• Select and compare at least two segments.
• Observe that only the main segment is displayed in the reports.
• Perform the same comparison in another report category, such as Acquisition or Behaviour.

What I got:
Only the main segment is displayed in the eCommerce reports, while the second segment does not appear.

What I expected instead:
Both segments should be displayed in the eCommerce reports, as they are in other report categories.

2025-01-11.11-52-53.mp4

[sgiehl]

Sounds like a duplicate or at least related to #19933, #22601, #21993 and #15349