Building from the latest sources on endeavouros (Arch):

TESTNUM=Y01 make check
cd Test ; make check
make[1]: Entering directory '/SSD-2/opt/build/zsh-2021-03-31/Test'
if test -n "gcc"; then \
  cd .. && DESTDIR= \
  make MODDIR=`pwd`/Test/Modules install.modules > /dev/null; \
fi
if test -z "$ZTST_handler"; then \
  ZTST_handler=runtests.zsh; \
fi; \
if ZTST_testlist="`for f in ../../../src/zsh-2021-03-31/Test/Y01*.ztst; \
           do echo $f; done`" \
 ZTST_srcdir="../../../src/zsh-2021-03-31/Test" \
 ZTST_exe=../Src/zsh \
 ../Src/zsh +Z -f ../../../src/zsh-2021-03-31/Test/$ZTST_handler; then \
 stat=0; \
else \
 stat=1; \
fi; \
sleep 1; \
rm -rf Modules .zcompdump; \
exit $stat
../../../src/zsh-2021-03-31/Test/Y01completion.ztst: starting.
--- /tmp/zsh.ztst.628309/ztst.out 2021-03-31 09:31:50.414616505 -0400
+++ /tmp/zsh.ztst.628309/ztst.tout 2021-03-31 09:31:50.647949508 -0400
@@ -1,16 +1,12 @@
-line: {: dir1/}{}
-DESCRIPTION:{expansions}
+line: {: dir1 dir2 file1 file2 }{}
+line: {: dir1 dir2 file1 file2 }{}
+DESCRIPTION:{file}
 DI:{dir1}
 DI:{dir2}
 FI:{file1}
 FI:{file2}
-DESCRIPTION:{all expansions}
-NO:{dir1 dir2 file1 file2}
-DESCRIPTION:{original}
-NO:{*}
-line: {: dir1/}{}
-line: {: dir2/}{}
-line: {: file1 }{}
-line: {: file2 }{}
-line: {: dir1 dir2 file1 file2 }{}
-line: {: *}{}
+line: {: dir1 dir2 file1 file2 dir1/}{}
+line: {: dir1 dir2 file1 file2 dir2/}{}
+line: {: dir1 dir2 file1 file2 file1}{}
+line: {: dir1 dir2 file1 file2 file2}{}
+line: {: dir1 dir2 file1 file2 dir1/}{}
Test ../../../src/zsh-2021-03-31/Test/Y01completion.ztst failed: output differs from expected as shown above for:
  comptest $': *\t\t\t\t\t\t\t'
Was testing: _expand shows file types
../../../src/zsh-2021-03-31/Test/Y01completion.ztst: test failed.
**************************************
0 successful test scripts, 1 failure, 0 skipped
**************************************
make[1]: *** [Makefile:190: check] Error 1
make[1]: Leaving directory '/SSD-2/opt/build/zsh-2021-03-31/Test'
make: *** [Makefile:263: check] Error 2

  - Vin