$ git clone -n https://src.fedoraproject.org/rpms/rust-ab_glyph.git /var/lib/mock/f38-build-side-42-init-devel-1130938-30332/root/chroot_tmpdir/scmroot/rust-ab_glyph
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1130938-30332/root/chroot_tmpdir/scmroot/rust-ab_glyph'...
$ git fetch origin 751f522622833fc37489549477f7a76c25a2f582:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ab_glyph
 * [new ref]         751f522622833fc37489549477f7a76c25a2f582 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 751f522 Update to 0.2.20