submodule jimtcl failure

[<ka...@as...>]

 I did:

$ ./bootstrap 
+ aclocal --warnings=all
+ libtoolize --automake --copy
+ autoconf --warnings=all
+ autoheader --warnings=all
+ automake --warnings=all --gnu --add-missing --copy
Setting up submodules
warning: redirecting to https://repo.or.cz/r/jimtcl.git/
warning: redirecting to https://repo.or.cz/r/jimtcl.git/
error: Server does not allow request for unadvertised object 1933e5457b9512d39ebbe11ed32578aada149f49
fatal: Fetched in submodule path 'jimtcl', but it did not contain 1933e5457b9512d39ebbe11ed32578aada149f49. Direct fetching of that commit failed.
fatal: 
$

 The error appears by "git submodule update" in the bootstrap file.
 I solved that by doing "git submodule sync" as suggested by
https://stackoverflow.com/questions/51001919/how-to-solve-git-error-server-does-not-allow-request-for-unadvertised-object-3a
 and then rerunning bootstrap.

 Should the sync be included in the bootsrap file or should we examine
 this further ?

Regards,
/Karl Hammar