$ git clone -n https://src.fedoraproject.org/rpms/rust-enumflags2_derive.git /var/lib/mock/f41-build-881994-16528/root/chroot_tmpdir/scmroot/rust-enumflags2_derive
Cloning into '/var/lib/mock/f41-build-881994-16528/root/chroot_tmpdir/scmroot/rust-enumflags2_derive'...
$ git fetch origin ff95fbb1242781bbf316862e16807d0f3258c39d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-enumflags2_derive
 * [new ref]         ff95fbb1242781bbf316862e16807d0f3258c39d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ff95fbb Update to version 0.7.10; Fixes RHBZ#2290898