The secret is
git clone https://stash.acme.com/scm/pup/biemond-orawls-vagrant.git
Cloning into 'biemond-orawls-vagrant'...
fatal: unable to access 'https://stash.acme.com/scm/pup/biemond-orawls-vagrant.git/': SSL certificate problem: unable to get local issuer certificate
set GIT_SSL_NO_VERIFY=true
git clone etc etc