18.08 beta tags missing

[Luca Beltrame]

Hello,

as the subject says, tags for the beta have not been pushed (tested
with the kmail repo):

git tag | tail
v17.12.0
v17.12.1
v17.12.2
v17.12.3
v18.03.80
v18.03.90
v18.04.0
v18.04.1
v18.04.2
v18.04.3