$ git clone -n https://src.fedoraproject.org/rpms/rust-sequoia-chameleon-gnupg.git /var/lib/mock/f42-build-side-1-3506351-45996/root/chroot_tmpdir/scmroot/rust-sequoia-chameleon-gnupg
Cloning into '/var/lib/mock/f42-build-side-1-3506351-45996/root/chroot_tmpdir/scmroot/rust-sequoia-chameleon-gnupg'...
$ git fetch origin c5bcdc1054c9e12392a08ed7709895d49a1f2577:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sequoia-chameleon-gnupg
 * [new ref]         c5bcdc1054c9e12392a08ed7709895d49a1f2577 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c5bcdc1 Relax bzip2 dev-dependency to allow building with both v0.4 and v0.5