[MapProxy] Error in demo TMS link generation?

[Jivan Amara]

It looks like the demo page links for TMS aren't generated respecting
the use_grid_names option.
When 'use_grid_names' is set to true, the link:
http://localhost:8080/tms/1.0.0/NE2_HR_LC_SR_W_DR2/NE2_HR_LC_SR_W_DR2_4326/0/0/0.png
returns the correct tile, but clicking on the link for the same layer
under 'Coordinate-System' for TMS returns a page which hits
/tms/1.0.0/NE2_HR_LC_SR_W_DR2/EPSG4326/0/0/0.png which returns a 404.

Setting 'use_grid_names' to false makes the links from the demo page TMS
work fine.

Should I open a ticket?

Here's the config file I'm using: https://paste.ee/p/6EZS6