TurboTable - Multiple Row Selection selects same rows more than once

[machfalcon]

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Plunkr Case (Bug Reports)
No need for Plunkr, see PrimeNg Documentation site to reproduce:
https://www.primefaces.org/primeng/#/table/selection

Current behavior
Rows between the Ctrl clicked row and the Shift clicked row are added to the selection again

Expected behavior
The selection should be reset to the rows between the Ctrl clicked row and the Shift clicked row

Minimal reproduction of the problem with instructions

STEPS TO REPRODUCE

1. Click a row in the table
2. Shift click another row in the table to add a range of records
3. Ctrl click to add an additional record
4. Shift click one of the rows selected in step 2

• PrimeNG version: 5.X.X
  Version used on PrimeNg Documentation site

• Browser:
  Chrome Version 63.0.3239.132 (Official Build) (64-bit)