[BUG] gitk: breaks with both version and file limits

As an example, on a current git tree, the following command triggers
an 'Error: expected boolean value but got ""' dialog when scrolling to
the bottom of the graph, and leaves the bottom of the graph not drawn.
This happens with current master, but not with 1.2.4.

gitk --all ^v1.0.6 -- Makefile 

While checking with git-bisect while limiting to path gitk, I noticed
the amusing detail that "git-bisect visualize" is impacted by this bug.

git-bisect shows that the commit triggering the problem is
79b2c75e043ad85f9a6b1a8d890b601a2f761a0e ("gitk: replace parent and
children arrays with lists" on Apr 2)

Hope this helps,
-- 
Yann Dirson    [off-list ref] |
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