$ git clone -n https://src.fedoraproject.org/rpms/golang-github-mitchellh-homedir.git /var/lib/mock/f45-build-12250-440/root/chroot_tmpdir/scmroot/golang-github-mitchellh-homedir
Cloning into '/var/lib/mock/f45-build-12250-440/root/chroot_tmpdir/scmroot/golang-github-mitchellh-homedir'...
$ git fetch origin e9299c57cd006f9d4a67a808ee07fb8c073e27b2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-mitchellh-homedir
 * [new ref]         e9299c57cd006f9d4a67a808ee07fb8c073e27b2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9299c5 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild