tickets - allow viewing older patchsets

[gitblit]

Originally reported on Google Code with ID 542

What steps will reproduce the problem?
1. Close a ticket via patchset and merge.
2. Edit the ticket to mark as open.
3. Push new patchset

What is the expected output? What do you see instead?
gitblit correctly recognized that this is a 2nd patchset for the same ticket. But it
only shows the 2nd patchset. There is no proper way to see the commits which were part
of patchset1 (or in general past patchsets)

What version of the product are you using? On what operating system?
v1.6.2, GitBlit WAR

Please provide any additional information below.
Relevant discussion : https://groups.google.com/forum/#!topic/gitblit/FuiFhZhys8o

Reported by dharapvj on 2014-12-29 07:03:28

[mockingjs]

:+1: this would be very useful - any eta?

[gitblit]

Hasn't been started so eta is currently not predictable.