Implement `reset-citation-positions` class on headings.reset-position

When the `reset-citation-positions` class is added to
a top-level heading, `--citeproc` will reset position
information at that point in the document. This is needed
in order to ensure that the first citation in a chapter
to a work that has been cited in a previous chapter will
not be in abbreviated form.

Requires a dependency on a development version of citeproc.

1 files changed, 41 insertions, 0 deletions

diff --git a/test/command/reset-citation-positions.md b/test/command/reset-citation-positions.md
new file mode 100644
index 000000000..e6ed125d0
--- /dev/null
+++ b/test/command/reset-citation-positions.md
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+```
+% pandoc --citeproc -t plain --csl command/chicago-fullnote-bibliography.csl
+---
+suppress-bibliography: true
+references:
+- id: foo
+  name: John doe
+  title: A Book
+  type: book
+  publisher: Oxford University Press
+  issued: 2010
+...
+
+# Chapter one
+
+Blah [@foo, p. 7].
+
+Blah [@foo, p. 8].
+
+# Chapter two {.reset-citation-positions}
+
+Blah [@foo, p. 57].
+^D
+Chapter one
+
+Blah.[1]
+
+Blah.[2]
+
+Chapter two
+
+Blah.[3]
+
+[1] A Book (Oxford University Press, 2010), 7.
+
+[2] A Book, 8.
+
+[3] A Book (Oxford University Press, 2010), 57.
+
+```
+