Hello. Here is a very strange phenomenon experienced with the latest revision (594079). Consider the attached XSL-FO. As you may notice, there are unexplained blank lines (after label2/value2, label3/value3, and block1). The funny thing is, that any one of the following changes will cause the problem to disappear: 1) Remove the "block-container", so the table is a direct child of the flow. 2) Add "line-height=100%" to the flow. 3) Remove the <fo:block space-before="1.0em"/> which appears right below "Heading".
Created attachment 21112 [details] Demonstration
This is very similar (although not exactly the same) as bug #43815 in which I observed that block-containers with position="absolute" caused strange layout effects if not all of the 4 properties: left, top, width, and height were specified.
resetting severity from major to normal pending further review
resetting P2 open bugs to P3 pending further review