Reset the (running) change in PainterInfo

When an InsetText is deleted, all lines in the inset are painted as
deleted. This status should be restored afterwards. If not, insets will be
painted in the wrong color afterwards (e.g. tables).

(cherry picked from commit af4e31ec28)

src/rowpainter.cpp

@@ -128,6 +128,7 @@ void RowPainter::paintInset(Inset const * inset, pos_type const pos)
 	pi_.base.font = inset->inheritFont() ? font.fontInfo() :
 		pi_.base.bv->buffer().params().getFont().fontInfo();
 	pi_.ltr_pos = (bidi_.level(pos) % 2 == 0);
+	Change prev_change = change_;
 	pi_.change_ = change_.changed() ? change_ : par_.lookupChange(pos);
 
 	int const x1 = int(x_);
@@ -147,6 +148,7 @@ void RowPainter::paintInset(Inset const * inset, pos_type const pos)
 
 	// Restore full_repaint status.
 	pi_.full_repaint = pi_full_repaint;
+	pi_.change_ = prev_change;
 
 #ifdef DEBUG_METRICS
 	int const x2 = x1 + dim.wid;

status.20x

@@ -157,6 +157,9 @@ What's new
 
 - Fix erroneous error message when calling "buffer-language" manually.
 
+- Fix coloring of insets that come after deleted text insets with
+  change tracking on.
+
 
 * DOCUMENTATION AND LOCALIZATION