test-narrow-clone-stream: include no usefncache case which is broken

Since 9aeb9e2d28a7, encoded filenames are filtered by the narrow matcher,
which is clearly wrong.

tests/test-narrow-clone-stream.t

@@ -1,86 +1,110 b''
-#testcases tree flat
+#testcases tree flat-fncache flat-nofncache
 
 Tests narrow stream clones
 
   $ . "$TESTDIR/narrow-library.sh"
 
 #if tree
   $ cat << EOF >> $HGRCPATH
   > [experimental]
   > treemanifest = 1
   > EOF
 #endif
 
+#if flat-nofncache
+  $ cat << EOF >> $HGRCPATH
+  > [format]
+  > usefncache = 0
+  > EOF
+#endif
+
 Server setup
 
   $ hg init master
   $ cd master
   $ mkdir dir
   $ mkdir dir/src
   $ cd dir/src
   $ for x in `$TESTDIR/seq.py 20`; do echo $x > "F$x"; hg add "F$x"; hg commit -m "Commit src $x"; done
 
   $ cd ..
   $ mkdir tests
   $ cd tests
   $ for x in `$TESTDIR/seq.py 20`; do echo $x > "F$x"; hg add "F$x"; hg commit -m "Commit src $x"; done
   $ cd ../../..
 
 Trying to stream clone when the server does not support it
 
   $ hg clone --narrow ssh://user@dummy/master narrow --noupdate --include "dir/src/F10" --stream
   streaming all changes
   remote: abort: server does not support narrow stream clones
   abort: pull failed on remote
   [255]
 
 Enable stream clone on the server
 
   $ echo "[experimental]" >> master/.hg/hgrc
   $ echo "server.stream-narrow-clones=True" >> master/.hg/hgrc
 
 Cloning a specific file when stream clone is supported
 
   $ hg clone --narrow ssh://user@dummy/master narrow --noupdate --include "dir/src/F10" --stream
   streaming all changes
   * files to transfer, * KB of data (glob)
   transferred * KB in * seconds (* */sec) (glob)
 
   $ cd narrow
   $ ls
   $ hg tracked
   I path:dir/src/F10
 
 Making sure we have the correct set of requirements
 
   $ cat .hg/requires
-  dotencode
-  fncache
+  dotencode (tree flat-fncache !)
+  fncache (tree flat-fncache !)
   generaldelta
   narrowhg-experimental
   revlogv1
   store
   treemanifest (tree !)
 
 Making sure store has the required files
 
   $ ls .hg/store/
   00changelog.i
   00manifest.i
-  data
-  fncache
+  data (tree flat-fncache !)
+  fncache (tree flat-fncache !)
   meta (tree !)
   narrowspec
   undo
   undo.backupfiles
   undo.phaseroots
 
 Checking that repository has all the required data and not broken
 
+#if flat-nofncache
+  $ hg verify
+  checking changesets
+  checking manifests
+  crosschecking files in changesets and manifests
+  checking files
+   warning: revlog 'data/dir/src/F10.i' not in fncache!
+   9: empty or missing dir/src/F10
+   dir/src/F10@9: manifest refers to unknown revision 419ee72d626b
+  checked 40 changesets with 0 changes to 1 files
+  1 warnings encountered!
+  hint: run "hg debugrebuildfncache" to recover from corrupt fncache
+  2 integrity errors encountered!
+  (first damaged changeset appears to be 9)
+  [1]
+#else
   $ hg verify
   checking changesets
   checking manifests
   checking directory manifests (tree !)
   crosschecking files in changesets and manifests
   checking files
   checked 40 changesets with 1 changes to 1 files
+#endif