Fix string subst

diff --git a/src/insets/InsetCitation.cpp b/src/insets/InsetCitation.cpp
index 0c4b3fe68ce3cd3d947b1098efda39f1d2227973..dc4bb2dcf9988a93a8c9027b7ceff1cb88d81f76 100644 (file)
--- a/src/insets/InsetCitation.cpp
+++ b/src/insets/InsetCitation.cpp
@@ -211,7 +211,7 @@ void InsetCitation::openCitation()
                                       from_ascii(lyxrc.citation_search_pattern));
                // some cleanup: commas and " and ", as used in name lists,
                // are not expected in file names
-               titledata = subst(titledata, ',', char());
+               titledata = subst(titledata, from_ascii(","), docstring());
                titledata = subst(titledata, from_ascii(" and "), from_ascii(" "));
                bi.getLocators(kvar, doi, url, file);
                LYXERR(Debug::INSETS, "Locators: doi:" << doi << " url:"