$ git clone -n https://src.fedoraproject.org/rpms/erlang-rebar3-pc.git /var/lib/mock/f45-build-8423-388/root/chroot_tmpdir/scmroot/erlang-rebar3-pc
Cloning into '/var/lib/mock/f45-build-8423-388/root/chroot_tmpdir/scmroot/erlang-rebar3-pc'...
$ git fetch origin abe28b39071c4ca1016b5d43310d37c6ec3eca99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-rebar3-pc
 * [new ref]         abe28b39071c4ca1016b5d43310d37c6ec3eca99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at abe28b3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild