Another one for the tracker. I suspect this one relates very closely to the previous bug I mailed in less than an hour ago, but I'm not certain. Maybe add to the tracker as two separate IDs, but referencing each other? Either way, these two mail given info that should wind up as two separate regression tests once a fix shows up later on.
Again there is a workaround included towards the bottom, so lower priority.
All examples 2.11.34.
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NR 1.8.3.2 "Text and line spanners" uses the following syntax for setting TextSpanner #'bound-details #'left-broken and TextSpanner #'bound-details #'right-broken:
Note that this alist syntax is not available in NR. This syntax is available in the IR ... but with no reference to left-broken and right-broken.
Maybe the best way to summarize this bug is that the code written to afford access to the nested sublists living inside of bound-details breaks when the user appends to the #'left-broken and #'right-broken sublists (but works fine when the user appends to the #'left and #'right sublists).