diff -r a5b04863dbff -r bca9d1a6c4c5 tests/test-sidedata.t
--- a/tests/test-sidedata.t	Thu Oct 10 16:02:47 2019 +0200
+++ b/tests/test-sidedata.t	Thu Oct 10 04:34:58 2019 +0200
@@ -10,7 +10,7 @@
   > testsidedata=$TESTDIR/testlib/ext-sidedata.py
   > EOF
 
-  $ hg init test-sidedata --config format.use-side-data=yes
+  $ hg init test-sidedata --config format.exp-use-side-data=yes
   $ cd test-sidedata
   $ echo aaa > a
   $ hg add a
@@ -48,7 +48,7 @@
 Check that we can upgrade to sidedata
 -------------------------------------
 
-  $ hg init up-no-side-data --config format.use-side-data=no
+  $ hg init up-no-side-data --config format.exp-use-side-data=no
   $ hg debugformat -v -R up-no-side-data
   format-variant    repo config default
   fncache:           yes    yes     yes
@@ -60,7 +60,7 @@
   plain-cl-delta:    yes    yes     yes
   compression:       zlib   zlib    zlib
   compression-level: default default default
-  $ hg debugformat -v -R up-no-side-data --config format.use-side-data=yes
+  $ hg debugformat -v -R up-no-side-data --config format.exp-use-side-data=yes
   format-variant    repo config default
   fncache:           yes    yes     yes
   dotencode:         yes    yes     yes
@@ -71,12 +71,12 @@
   plain-cl-delta:    yes    yes     yes
   compression:       zlib   zlib    zlib
   compression-level: default default default
-  $ hg debugupgraderepo -R up-no-side-data --config format.use-side-data=yes > /dev/null
+  $ hg debugupgraderepo -R up-no-side-data --config format.exp-use-side-data=yes > /dev/null
 
 Check that we can downgrade from sidedata
 -----------------------------------------
 
-  $ hg init up-side-data --config format.use-side-data=yes
+  $ hg init up-side-data --config format.exp-use-side-data=yes
   $ hg debugformat -v -R up-side-data
   format-variant    repo config default
   fncache:           yes    yes     yes
@@ -88,7 +88,7 @@
   plain-cl-delta:    yes    yes     yes
   compression:       zlib   zlib    zlib
   compression-level: default default default
-  $ hg debugformat -v -R up-side-data --config format.use-side-data=no
+  $ hg debugformat -v -R up-side-data --config format.exp-use-side-data=no
   format-variant    repo config default
   fncache:           yes    yes     yes
   dotencode:         yes    yes     yes
@@ -99,4 +99,4 @@
   plain-cl-delta:    yes    yes     yes
   compression:       zlib   zlib    zlib
   compression-level: default default default
-  $ hg debugupgraderepo -R up-side-data --config format.use-side-data=no > /dev/null
+  $ hg debugupgraderepo -R up-side-data --config format.exp-use-side-data=no > /dev/null