$ git clone -n https://src.fedoraproject.org/rpms/golang-github-alecthomas-assert.git /var/lib/mock/f39-build-1507772-35301/root/chroot_tmpdir/scmroot/golang-github-alecthomas-assert
Cloning into '/var/lib/mock/f39-build-1507772-35301/root/chroot_tmpdir/scmroot/golang-github-alecthomas-assert'...
$ git fetch origin f93757caac9eb8e8a0b7dd47bc920fd53d72487f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-alecthomas-assert
 * [new ref]         f93757caac9eb8e8a0b7dd47bc920fd53d72487f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f93757c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild