Update fragment_utils.py

Author: donerancl

rmgpy/molecule/fragment_utils.py

@@ -468,8 +468,8 @@ def cut_and_place_cutting_labels(rdfrag, bond_to_cut):
             frag1_smi = frag1.replace("*", "R")
             frag2_smi = frag2.replace("*", "L")
         elif frag2_L > frag1_L and frag2_R <= frag1_R:
-            frag1_smi = frag1.replace("*", "R")
-            frag2_smi = frag2.replace("*", "L")
+            frag1_smi = frag1.replace("*", "L")
+            frag2_smi = frag2.replace("*", "R")
         elif frag2_R > frag1_R and frag2_L <= frag1_L:
             frag1_smi = frag1.replace("*", "R")
             frag2_smi = frag2.replace("*", "L")