[Freeciv-Dev] (PR#2433) Techs with "Never" as req1 and req2 are deleted

["coppensbart@xxxxx via RT" <rt@xxxxxxxxxxxxxx>]

When making a modpack or scenario, it is sometimes necessary to give certain 
nations/races different techs. In Civilization, that was possible by the 
means of setting the 2 prerequisites to None. Trying that in Freeciv doesn't 
work. So I was advised to use "Never". That sounded right, but when I try 
that, I get the message
2: Loading rulesets
0: tech "Wargs": req1 leads to removed tech "Fire of Morgoth" 
This is an the exerpt from the techfile (a modified version of paulz's):

[advance_fire]
name     = _("Fire of Morgoth")
req1     = "Never"
req2     = "Never"
flags    = ""

[advance_wargs]
name     = _("Wargs")
req1     = "Fire of Morgoth"
req2     = "None"
flags    = ""

It seems that that tech is deleted instead of being usable in savegames/the 
map editor. For advanced scenarios/modpacks, a fix for this is really 
necessary.

Bart Coppens