$ git clone -n https://src.fedoraproject.org/rpms/rust-strict-num.git /var/lib/mock/f38-build-side-43-rust-devel-1411911-31436/root/chroot_tmpdir/scmroot/rust-strict-num
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1411911-31436/root/chroot_tmpdir/scmroot/rust-strict-num'...
$ git fetch origin 730efdff67b85b344c7c6b5ec74ef8f4ca4b868a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-strict-num
 * [new ref]         730efdff67b85b344c7c6b5ec74ef8f4ca4b868a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 730efdf Update to version 0.1.1; Fixes RHBZ#2210421