0a4dd8b855
With some large repositories, a commit can end up on thousands of branches, which results in an extremely long "Branches:" line in the details window, and that results in the window being extremely slow to scroll. This fixes it by just showing "many (N)" after "Branches:", "Follows:" or "Precedes:", where N is the number of heads or tags. The limit is currently set at 20 but could be made configurable (and the "many" could be a link to pop up a window listing them all in case anyone really wants to know). Signed-off-by: Paul Mackerras <paulus@samba.org>