$ git clone -n https://src.fedoraproject.org/rpms/389-ds-base.git /var/lib/mock/f45-build-39644-750/root/chroot_tmpdir/scmroot/389-ds-base
Cloning into '/var/lib/mock/f45-build-39644-750/root/chroot_tmpdir/scmroot/389-ds-base'...
$ git fetch origin e481a1a2fbd1f95992b59a92b08c450579c9fd8d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/389-ds-base
 * [new ref]         e481a1a2fbd1f95992b59a92b08c450579c9fd8d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e481a1a Resolves: rhbz#2530878 - ipa-server-install started to fail when /usr/lib is read-only