$ git clone -n https://src.fedoraproject.org/rpms/ghc-call-stack.git /var/lib/mock/f45-build-10067-413/root/chroot_tmpdir/scmroot/ghc-call-stack
Cloning into '/var/lib/mock/f45-build-10067-413/root/chroot_tmpdir/scmroot/ghc-call-stack'...
$ git fetch origin 02325590ffe67d06c543cbe6c023aba1d16ae214:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-call-stack
 * [new ref]         02325590ffe67d06c543cbe6c023aba1d16ae214 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0232559 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild