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-rw-r--r--tex/context/base/anch-bck.mkvi2
1 files changed, 2 insertions, 0 deletions
diff --git a/tex/context/base/anch-bck.mkvi b/tex/context/base/anch-bck.mkvi
index a44b10d3d..759b6ada5 100644
--- a/tex/context/base/anch-bck.mkvi
+++ b/tex/context/base/anch-bck.mkvi
@@ -46,6 +46,8 @@
% The first position can be used in the middle of a paragraph in which case we're
% too late with initializing par positions. Therefore we check if positions are
% used at all.
+%
+% tricky: we need to catch newly set! otherwise an old run can have positions
\unexpanded\def\anch_backgrounds_text_initialize
{\ctxcommand{doifelsepositionsused()}\enableparpositions\donothing