I think I succeeded:

https://pharo.fogbugz.com/f/cases/20613/Improve-some-UUID-comments
https://github.com/pharo-project/pharo/pull/420

It does contain 4 identical commits due to my troubles earlier on.
I also did not see a confirmation by way of an #inform: after the pull request in Iceberg.

> On 30 Oct 2017, at 21:50, Sven Van Caekenberghe <sven@stfx.eu> wrote:
>
>
>
>> On 30 Oct 2017, at 21:42, Esteban Lorenzano <estebanlm@gmail.com> wrote:
>>
>> hi,
>>
>> thing is, you should not use https authentication (and the guide should not point to it)
>> Using SSH mode works out of the box.
>> Using HTTPS there is currently a bug and the workaround is to introduce your credentials *before* trying to commit (in settings)
>
> Well, after entering my username/password in Settings > Tools > Software Configuration Management > Iceberg > Plaintext Credentials I am one step further - I managed to 'Commit & Push'.
>
> Thanks !
>
>> Esteban
>>
>>> On 30 Oct 2017, at 20:33, Sven Van Caekenberghe <sven@stfx.eu> wrote:
>>>
>>> Hi,
>>>
>>> Sorry, but I am person 237 trying to contribute to Pharo 7 the new way.
>>>
>>> I was following https://github.com/guillep/PharoIntegrationProcess/wiki/Contribute-a-fix-to-Pharo and I got stuck just before step 3, after trying to do "That will calculate the differences between the checked-out branch and your image, show you the tree with the differences and let you commit (and push)". Specifically, the 'and push' fails.
>>>
>>> $ sw_vers
>>> ProductName:�� �� �� �� Mac OS X
>>> ProductVersion:�� �� ��10.13
>>> BuildVersion:�� �� �� ��17A405
>>>
>>> $ curl get.pharo.org/70+vm | bash
>>> ...
>>>
>>> $ ./pharo-ui Pharo.image
>>>
>>> I now have the following setup, which is correct I think.
>>>
>>> <Screen Shot 2017-10-30 at 20.28.05.png>
>>>
>>> I can commit on my local branch (left button), but when I try to do the 'and Push' (right button), things hang after I enter my credentials.
>>>
>>> Locally, I see
>>>
>>> $ git status
>>> On branch 20613-Improve-some-UUID-comments
>>> nothing to commit, working tree clean
>>>
>>> with the new code already committed
>>>
>>> $ cat src/Network-UUID.package/UUID.class/class/new.st
>>> instance creation
>>> new
>>>�� �� ��"Create and return a new UUID"
>>>
>>>�� �� ��"self new"
>>>
>>>�� �� ��^ (self new: 16)
>>>
>>> What did I do wrong ? How do I proceed ?
>>>
>>> Sven
>>>
>>
>