$ git clone -n https://src.fedoraproject.org/rpms/rust-indoc.git /var/lib/mock/f40-build-2115910-50697/root/chroot_tmpdir/scmroot/rust-indoc
Cloning into '/var/lib/mock/f40-build-2115910-50697/root/chroot_tmpdir/scmroot/rust-indoc'...
$ git fetch origin a5b6195b481eff84d682c846d0d875e053cc605a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-indoc
 * [new ref]         a5b6195b481eff84d682c846d0d875e053cc605a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5b6195 Update to version 2.0.4; Fixes RHBZ#2239263