[FOP-1223] Invalid extra page break creates an undesired empty page

• Type: Bug
• Status: Reopened
• Resolution: Unresolved
• Affects Version/s: 2.5
• Component/s: layout/unqualified
• Environment: Operating System: All; Platform: All
• External issue ID: 40230
• Assignee: Unassigned
• Reporter: Vincent Hennebert
• Created: 11/Aug/06 08:08
• Updated: 16/Dec/12 08:21

Description

When there is an <fo:block break-after="page"/> and nothing after it in the
flow, a new page is still created, whereas section 7.19.1 of the recommendation
states that it should be the case only if there is material to typeset
afterwards. See the attached fo sample.
The result is the same if we replace break-after by break-before.
Same result also if we remove the indenting such that all the closing tags after
the block are sticked together, so this is not a whitespace handling issue.

I guess that a Knuth penalty of value -infinity is generated for such a block,
and this doesn't play well with the (infinite glue, -infinite penalty) pair
which is probably added at the end of the page sequence. The penalty should
probably be only generated if there is also some box after it, and before the
ending pair.

If nobody takes this bug I'll have a look at it after the GSoC.