Bug 1085328

Description of problem:
It is not possible to clone repositories to a different machine, except some very small ones (like a brand new repository).

I have 2 machines, A.B.C.X and A.B.C.Y - the app server with business-central runs on A.B.C.X, I'm trying to clone from A.B.C.Y. 
App server is bound to A.B.C.X host, git and ssh daemons are set to this host as well (using system properties "org.uberfire.nio.git.daemon.host", "org.uberfire.nio.git.ssh.host"  set in standalone.xml), I'm using default ports (9418 for git and 8001 for ssh), connecting to these ports is allowed on the X machine as well.
In business-central, I have a repository "myrepo" with quite a few assets and some history.

I try to clone "myrepo" using 'git clone ssh://testadmin.C.X:8001/myrepo'.
Doing this form the A.B.C.X works. Doing this from the A.B.C.Y machine, the cloning fails due to, probably, some kind of exceeded timeout. Depending on the size of the repository, I get either some 'Packfile truncated' error or 'Corrupted MAC on input. Disconnecting: Packet corrupt .. fatal: early EOF' or some variation on that:

"""
git clone ssh://testadmin.C.X:8001/myrepo
Cloning into 'myrepo'...
Authenticated with partial success.
Password authentication
Password:
remote: Counting objects: 2928, done
remote: Finding sources: 100% (2928/2928)
remote: Getting sizes: 100% (1443/1443)
Corrupted MAC on input.
Disconnecting: Packet corrupt
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed
"""

Cloning the same repository via the git protocol works fine so far.


Version-Release number of selected component (if applicable):
BPMS 6.0.1 CR2


Steps to Reproduce:
1. Set up app server with business-central on machine A.B.C.X, with proper host binding, ssh and git daemons host set, (default) ports allowed. Set up user testadmin (role 'admin').
2. Clone a decent-size repository to business-central under the name "myrepo".
3. On machine A.B.C.Y, execute command 'git clone ssh://testadmin.C.X:8001/myrepo'


Actual results:
Cloning fails.


Expected results:
Repository is cloned successfully.