[Lazarus] Important update / change for the Lazarus GIT repro

[Martin Frb]

*** Concerning the main Lazarus GIT repository

Unfortunately an error had made it into the conversion from SVN to GIT.
The previously published GIT repro would under certain circumstances 
cause issues when history was accessed.
This means we have to do a new conversion from scratch.
    Therefore

*** The existing GIT repository has been taken down.
*** And it will be replaced by a new one.

The new repro will be made available at the same url, once it is ready.

=>    If you have a clone/fork of the old repro:

You can either

* delete your checkout / make a new clone

This will be the simplest way, if you have no local changes

* pull / remote update (for seasoned git users)

This will download the entire new repro too.
You will basically experience that every branch in the repro has been 
force-pushed, and diverged from your old data.
You can then "reset" tracking branches as needed. And/Or rebase local 
feature branches.

=>    Issue reports:


All issue reports will be reset to their last mantis status.
There have been a few new reports. Those will be recovered.
If you added notes/changes to existing reports, we will try to recover 
them, but you may have to redo them.

Further updates will be made available as they emerge.

We are sorry for any inconvenience caused.