Please use Source Url than

Source0: https://github.com/majn/telegram-purple//archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
for

https://github.com/majn/telegram-purple/archive/v1.2.0-beta3.tar.gz

I cannot use the archive tarball because it is lacking git submodules which are
necessary for building. Hence I have to use the `_service` file to clone the
repository recursively and recompress it. Also, afair, Factory does not accept
packages with source urls.

One more stumbling block: `Version` is deliberately set to `1.2.0_beta3` and not
`1.2.0-beta3`. The rpm linter does not accept the `-` in the version string. (I
could go on a rant on how stupid it is to do version string splitting based on
characters, but let's just leave it at this). If I really want to use `Version:
1.2.0-beta3` I have to jump through some nasty hoops to get it straight.

ok