$ git clone -n https://src.fedoraproject.org/rpms/btrfs-progs.git /var/lib/mock/f33-build-302505-56992/root/chroot_tmpdir/scmroot/btrfs-progs
Cloning into '/var/lib/mock/f33-build-302505-56992/root/chroot_tmpdir/scmroot/btrfs-progs'...
$ git reset --hard 9107d39acbd797b209d6f9cc35dcf8b77a0b8045
HEAD is now at 9107d39 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild