$ git clone -n https://src.fedoraproject.org/rpms/rust-inventory0.1.git /var/lib/mock/f39-build-1493787-34540/root/chroot_tmpdir/scmroot/rust-inventory0.1
Cloning into '/var/lib/mock/f39-build-1493787-34540/root/chroot_tmpdir/scmroot/rust-inventory0.1'...
$ git fetch origin 18756c4f51bd89bcee413ebd9b0e97fbb996199d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-inventory0.1
 * [new ref]         18756c4f51bd89bcee413ebd9b0e97fbb996199d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 18756c4 Regenerate with rust2rpm v24