diff -r 9dc1351d0b5f -r fc4fb2f17dd4 mercurial/scmutil.py
--- a/mercurial/scmutil.py	Fri Nov 20 14:43:21 2020 -0800
+++ b/mercurial/scmutil.py	Mon Nov 16 16:00:50 2020 -0800
@@ -222,7 +222,7 @@
     except error.WdirUnsupported:
         ui.error(_(b"abort: working directory revision cannot be specified\n"))
     except error.Abort as inst:
-        if isinstance(inst, error.InputError):
+        if isinstance(inst, (error.InputError, error.ParseError)):
             detailed_exit_code = 10
         elif isinstance(inst, error.StateError):
             detailed_exit_code = 20