Fix bugtracker #312: wire text rotation not preserved on reload

RotateTextsCommand::undo()/redo() called cti->forceMovedByUser(...)
instead of cti->forceRotateByUser(...) for ConductorTextItem entries
- a copy-paste mix-up between the two parallel user-override flags
that track independently whether a conductor's text was manually
moved vs manually rotated.

Because rotate_by_user_ was never actually set to true, the rotation
attribute-writing gate in Conductor::toXml() (which checks
wasRotatedByUser()) never fired, so a manual rotation applied via
"Orienter les textes" (Edit > Orienter les textes / Ctrl+Space) was
silently dropped on save: the rotation displayed correctly until the
project was closed and reopened, at which point it reverted to
default orientation.

Fix swaps both calls to forceRotateByUser(...), matching what the
constructor reads via wasRotatedByUser() when building m_cond_texts.

Verified: clean rebuild (506/506, no new warnings). Live-verified
under Xvfb that RotateTextsCommand's rotation correctly animates and
applies to ConductorTextItem text (confirmed via the "Orienter les
textes" dialog). A full save/close/reopen round-trip on a from-scratch
two-element wire was attempted but not completed due to unreliable
terminal-to-terminal wire drawing via synthetic mouse events in the
window-manager-less Xvfb sandbox; confidence in the fix instead rests
on tracing the exact save-gate code path (Conductor::toXml() gates
solely on wasRotatedByUser(), which the constructor/undo/redo all
already correctly reference elsewhere for the parallel
moved-by-user flag).

sources/undocommand/rotatetextscommand.cpp

@@ -89,7 +89,7 @@ void RotateTextsCommand::undo()
 	m_anim_group->start();
 	
 	for(ConductorTextItem *cti : m_cond_texts.keys())
-		cti->forceMovedByUser(m_cond_texts.value(cti));
+		cti->forceRotateByUser(m_cond_texts.value(cti));
 }
 
 void RotateTextsCommand::redo()
@@ -101,7 +101,7 @@ void RotateTextsCommand::redo()
 	m_anim_group->start();
 	
 	for(ConductorTextItem *cti : m_cond_texts.keys())
-		cti->forceMovedByUser(true);
+		cti->forceRotateByUser(true);
 }
 
 void RotateTextsCommand::openDialog()