$ git clone -n https://src.fedoraproject.org/rpms/rust-enumflags2.git /var/lib/mock/f41-build-882000-16528/root/chroot_tmpdir/scmroot/rust-enumflags2
Cloning into '/var/lib/mock/f41-build-882000-16528/root/chroot_tmpdir/scmroot/rust-enumflags2'...
$ git fetch origin 80c1d955b0007cc2f8094cefcf7511631b8e8742:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-enumflags2
 * [new ref]         80c1d955b0007cc2f8094cefcf7511631b8e8742 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 80c1d95 Update to version 0.7.10; Fixes RHBZ#2290899