$ git clone -n https://src.fedoraproject.org/rpms/rust-regex-lite.git /var/lib/mock/f38-build-side-43-rust-devel-1411661-31436/root/chroot_tmpdir/scmroot/rust-regex-lite
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1411661-31436/root/chroot_tmpdir/scmroot/rust-regex-lite'...
$ git fetch origin 140dd2e357018469cdbcb7650a40b9ede0d05fe1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-regex-lite
 * [new ref]         140dd2e357018469cdbcb7650a40b9ede0d05fe1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 140dd2e Update to version 0.1.4; Fixes RHBZ#2243072