fdo#75815: Adjust external references here too.

Adjusting external references are much simpler than adjusting internal
ones since we don't need to worry about deleted references etc.

Change-Id: I82111e383e1fc6976ef08c1438c3dd916a249af6
diff --git a/sc/source/core/tool/token.cxx b/sc/source/core/tool/token.cxx
index eee7c9d2..8057224 100644
--- a/sc/source/core/tool/token.cxx
+++ b/sc/source/core/tool/token.cxx
@@ -2751,6 +2751,25 @@ sc::RefUpdateResult ScTokenArray::AdjustReferenceOnShift( const sc::RefUpdateCon
                rRef.SetRange(aAbs, aNewPos);
            }
            break;
            case svExternalSingleRef:
            {
                // For external reference, just reset the reference with
                // respect to the new cell position.
                ScToken* pToken = static_cast<ScToken*>(*p);
                ScSingleRefData& rRef = pToken->GetSingleRef();
                ScAddress aAbs = rRef.toAbs(rOldPos);
                rRef.SetAddress(aAbs, aNewPos);
            }
            break;
            case svExternalDoubleRef:
            {
                // Same as above.
                ScToken* pToken = static_cast<ScToken*>(*p);
                ScComplexRefData& rRef = pToken->GetDoubleRef();
                ScRange aAbs = rRef.toAbs(rOldPos);
                rRef.SetRange(aAbs, aNewPos);
            }
            break;
            case svIndex:
            {
                const formula::FormulaToken* pToken = *p;