$ git clone -n https://src.fedoraproject.org/rpms/tcl-thread.git /var/lib/mock/f31-build-55014-28078/root/chroot_tmpdir/scmroot/tcl-thread
Cloning into '/var/lib/mock/f31-build-55014-28078/root/chroot_tmpdir/scmroot/tcl-thread'...
$ git reset --hard 7620cb1c3474f459ad5545bb76bac1cd09eda8bc
HEAD is now at 7620cb1 - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild