Duplicate entries generated for the same label using Reports in JMeter?

### Expected behavior

Why are duplicate entries generated for the same label using Dashboard Reports in JMeter?

### Actual behavior

Total | 628 | 1 | 0.16% | 435.36 | 259 | 5734 | 279.00 | 814.10 | 1079.05 | 2573.78 | 2.30 | 120.93 | 4.53
-- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | --
/1099/SetupAndPrint1099.aspx-817 | 1 | 0 | 0.00% | 405.00 | 405 | 405 | 405.00 | 405.00 | 405.00 | 405.00 | 2.47 | 93.80 | 2.00
/-308 | 1 | 0 | 0.00% | 1498.00 | 1498 | 1498 | 1498.00 | 1498.00 | 1498.00 | 1498.00 | 0.67 | 2.28 | 0.30
/-327 | 1 | 0 | 0.00% | 605.00 | 605 | 605 | 605.00 | 605.00 | 605.00 | 605.00 | 1.65 | 32.79 | 3.28
/-327-0 | 1 | 0 | 0.00% | 304.00 | 304 | 304 | 304.00 | 304.00 | 304.00 | 304.00 | 3.29 | 1.46 | 4.26
/-327-1 | 1 | 0 | 0.00% | 299.00 | 299 | 299 | 299.00 | 299.00 | 299.00 | 299.00 | 3.34 | 64.86 | 2.30
/Accounts/AccountsViewEdit.aspx-613 | 1 | 0 | 0.00% | 650.00 | 650 | 650 | 650.00 | 650.00 | 650.00 | 650.00 | 1.54 | 64.60 | 1.26

### Steps to reproduce the problem

Trying

### JMeter Version

5.5

### Java Version

17

### OS Version

Windows 11

Start by reproducing the Dashboard Reports output in JMeter 5.5 using Java 17 on Windows 11 and compare the repeated labels in the supplied table. Trace the report-generation path to determine why entries such as /-327, /-327-0, and /-327-1 appear, then verify that equivalent labels are no longer duplicated.

Written by the indexing model from the issue text.