$ git clone -n https://src.fedoraproject.org/rpms/golang-x-mobile.git /var/lib/mock/f39-build-1572646-37788/root/chroot_tmpdir/scmroot/golang-x-mobile
Cloning into '/var/lib/mock/f39-build-1572646-37788/root/chroot_tmpdir/scmroot/golang-x-mobile'...
$ git fetch origin 3aa45bb5b53288aa500b8ceeb95a2cf9ea815aa4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-x-mobile
 * [new ref]         3aa45bb5b53288aa500b8ceeb95a2cf9ea815aa4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3aa45bb Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild