Feature request: collapse builds of the same branch

[kaspar030]

It would be nice if repeated builds of a PR would get collapsed.
Currently:

#xxxx PR xxxx: do sth
#xxxx PR xxxx: do sth
#xxxx PR xxxx: do sth
#xxxx PR xxxx: do sth
#xxxx PR xxxx: do sth
#yyyy PR yyy: do sth else

desired:

#xxxx PR xxxx: do sth
  - older builds, click to expand
#yyyy PR yyy: do sth else

[kaspar030]

alternatively, provide an option to hide all but the newest build?