Dygraphs not showing tooltips: "Uncaught TypeError: tooltip.add is not a function"

[D-Groenewegen]

Setup

• MW version: 1.31, 1.39
• SMW 3.2.3, 4.1.0
• SRF 3.2.0, 4.0.1
• Firefox

Issue

No tooltips using the Dygraphs result format. A jQuery error is reported in the browser's console: Uncaught TypeError: tooltip.add is not a function.

Live in action:

• https://sandbox.semantic-mediawiki.net/wiki/Demo:Dygraphs/Annotate_gas_chromatogram_(10K_data_points) - reproduces the example below, with the same outcome
• Also seen on an older wiki with MW 1.31.16 and SMW 3.2.3 installed: https://www.semantic-mediawiki.org/wiki/Demo:Dygraphs/URL/Temperature_example

Expected result:
Tooltips

Observed result:
No tooltips

Stacktrace
Uncaught TypeError: tooltip.add is not a function.

P.S. I haven't looked into this, though I remember tha jQuery UI and Bootstrap were using the same name ('tooltip').