$ git clone -n https://src.fedoraproject.org/rpms/rust-pin-project-lite0.1.git /var/lib/mock/f41-build-side-1-3134874-39763/root/chroot_tmpdir/scmroot/rust-pin-project-lite0.1
Cloning into '/var/lib/mock/f41-build-side-1-3134874-39763/root/chroot_tmpdir/scmroot/rust-pin-project-lite0.1'...
$ git fetch origin bdbc15c41333e13d1bb19d8b7e9083c1486ae92f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pin-project-lite0.1
 * [new ref]         bdbc15c41333e13d1bb19d8b7e9083c1486ae92f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bdbc15c compat package no longer needed