[GRASS-user] imported .tif maps lose all data

Where can I download the 7.8.x source so I can build it here? Following
links from the web site's download for gneric linux
https://grass.osgeo.org/grass78/binary/linux/snapshot/> I find a zip file
and an install shell script, but not the source that allows me to build it
on this Slackware-14.2/x86_64 host. Are the source files available just like
the 8.0.dev source tree is?

a simple github checkout of the grass78_releasebranch?

https://github.com/OSGeo/grass/tree/releasebranch_7_8

Helmut