commit 861c6167ca5f1329e16dd788489a7c03772e2332
Author: Richard Kimberly Heck <[email protected]>
Date:   Tue Mar 17 01:54:47 2020 -0400

    Track whether we have warned about mixing layouts across e.g. branches.
---
 src/OutputParams.cpp |    2 +-
 src/OutputParams.h   |    3 +++
 src/output_latex.cpp |    6 ++----
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/src/OutputParams.cpp b/src/OutputParams.cpp
index 8b1d60e..7913758 100644
--- a/src/OutputParams.cpp
+++ b/src/OutputParams.cpp
@@ -34,7 +34,7 @@ OutputParams::OutputParams(Encoding const * enc)
          html_disable_captions(false), html_in_par(false),
          html_make_pars(true), for_toc(false), for_tooltip(false),
          for_search(false), for_preview(false), includeall(false),
-         already_title(false), issued_title_cmd(false)
+         already_title(false), issued_title_cmd(false), 
gave_layout_warning(false)
 {
        // Note: in PreviewLoader::Impl::dumpPreamble
        // OutputParams runparams(0);
diff --git a/src/OutputParams.h b/src/OutputParams.h
index 7e578c3..9a9577f 100644
--- a/src/OutputParams.h
+++ b/src/OutputParams.h
@@ -363,6 +363,9 @@ public:
        /// Used to signal we need to output \end{TITLEBLOCK} when title
        /// environment is used.
        mutable bool issued_title_cmd;
+       /// Did we already issue the warning about mixing title and
+       /// non-title layouts?
+       mutable bool gave_layout_warning;
 };
 
 
diff --git a/src/output_latex.cpp b/src/output_latex.cpp
index 07490e5..04d1e17 100644
--- a/src/output_latex.cpp
+++ b/src/output_latex.cpp
@@ -1595,8 +1595,6 @@ void latexParagraphs(Buffer const & buf,
        // variables used in the loop:
        DocumentClass const & tclass = bparams.documentClass();
 
-       // Did we already warn about inTitle layout mixing? (we only warn once)
-       bool gave_layout_warning = false;
        for (; pit < runparams.par_end; ++pit) {
                lastpit = pit;
                ParagraphList::const_iterator par = 
paragraphs.constIterator(pit);
@@ -1608,8 +1606,8 @@ void latexParagraphs(Buffer const & buf,
 
                if (layout.intitle) {
                        if (runparams.already_title) {
-                               if (!gave_layout_warning && !runparams.dryrun) {
-                                       gave_layout_warning = true;
+                               if (!runparams.gave_layout_warning && 
!runparams.dryrun) {
+                                       runparams.gave_layout_warning = true;
                                        frontend::Alert::warning(_("Error in 
latexParagraphs"),
                                                        bformat(_("You are 
using at least one "
                                                          "layout (%1$s) 
intended for the title, "
-- 
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