[LyX/master] In this case, the temporary variable can be a reference, which avoids three extra function calls.

[Richard Kimberly Heck]

commit 3e2ca12af7e039c43b52bc4ce39022ac2f2df9f1
Author: Richard Kimberly Heck <rikih...@lyx.org>
Date:   Thu Feb 13 12:07:58 2025 -0500

    In this case, the temporary variable can be a reference, which
    avoids three extra function calls.
---
 src/Buffer.cpp | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/Buffer.cpp b/src/Buffer.cpp
index 7f0ec11caa..0571e4d579 100644
--- a/src/Buffer.cpp
+++ b/src/Buffer.cpp
@@ -3966,10 +3966,11 @@ void Buffer::getUsedBranches(std::list<docstring> & 
result, bool const from_mast
        for (Inset const & it : inset()) {
                if (it.lyxCode() == BRANCH_CODE) {
                        InsetBranch const & br = static_cast<InsetBranch const 
&>(it);
-                       if (!from_master && 
!params().branchlist().find(br.branch()))
-                               result.push_back(br.branch());
-                       else if (from_master && 
!masterBuffer()->params().branchlist().find(br.branch()))
-                               result.push_back(br.branch());
+                       docstring const & branch = br.branch();
+                       if (!from_master && !params().branchlist().find(branch))
+                               result.push_back(branch);
+                       else if (from_master && 
!masterBuffer()->params().branchlist().find(branch))
+                               result.push_back(branch);
                        continue;
                }
                if (it.lyxCode() == INCLUDE_CODE) {
-- 
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