$ git clone -n https://src.fedoraproject.org/rpms/rust-awc.git /var/lib/mock/f39-build-1783409-41569/root/chroot_tmpdir/scmroot/rust-awc
Cloning into '/var/lib/mock/f39-build-1783409-41569/root/chroot_tmpdir/scmroot/rust-awc'...
$ git fetch origin 63c338d0f7c9cc46c8082eeb516367f199d28fe0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-awc
 * [new ref]         63c338d0f7c9cc46c8082eeb516367f199d28fe0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 63c338d Bump trust-dns-resolver dependency from 0.22 to 0.23