[LyX/master] Keep cursor position when splitting

[Scott Kostyshak]

commit a2310d04f47ba6aadea0e43ffc1e8a8579110022
Author: Daniel Ramoeller <d.lyx at web.de>
Date:   Mon Mar 6 21:44:59 2023 +0100

    Keep cursor position when splitting
    
    Fix for #12689
---
 src/frontends/qt/GuiView.cpp |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/frontends/qt/GuiView.cpp b/src/frontends/qt/GuiView.cpp
index 844ef90..c02c479 100644
--- a/src/frontends/qt/GuiView.cpp
+++ b/src/frontends/qt/GuiView.cpp
@@ -4880,6 +4880,8 @@ void GuiView::dispatch(FuncRequest const & cmd, DispatchResult & dr)
 				? Qt::Vertical : Qt::Horizontal);
 			TabWorkArea * twa = addTabWorkArea();
 			GuiWorkArea * wa = twa->addWorkArea(*doc_buffer, *this);
+			DocIterator cur = bv->cursor();
+			wa->bufferView().moveToPosition(cur.pit(), cur.pos(), 0, 0);
 			setCurrentWorkArea(wa);
 			break;
 		}