$ git clone -n https://src.fedoraproject.org/rpms/rust-strum0.21.git /var/lib/mock/f40-build-2083886-49970/root/chroot_tmpdir/scmroot/rust-strum0.21
Cloning into '/var/lib/mock/f40-build-2083886-49970/root/chroot_tmpdir/scmroot/rust-strum0.21'...
$ git fetch origin 1177476900dbc2656e7a722579cec01d1ec62d65:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-strum0.21
 * [new ref]         1177476900dbc2656e7a722579cec01d1ec62d65 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1177476 Regenerate with rust2rpm v24