$ git clone -n https://src.fedoraproject.org/rpms/rust-pager.git /var/lib/mock/f45-build-43720-805/root/chroot_tmpdir/scmroot/rust-pager
Cloning into '/var/lib/mock/f45-build-43720-805/root/chroot_tmpdir/scmroot/rust-pager'...
$ git fetch origin 9921a6e0dbf3e1b245ceb3ed4b44e2021ff3ea90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pager
 * [new ref]         9921a6e0dbf3e1b245ceb3ed4b44e2021ff3ea90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9921a6e Regenerate with rust2rpm v28