$ git clone -n https://src.fedoraproject.org/rpms/golang-github-uber-jaeger-lib.git /var/lib/mock/f40-build-2552253-61958/root/chroot_tmpdir/scmroot/golang-github-uber-jaeger-lib
Cloning into '/var/lib/mock/f40-build-2552253-61958/root/chroot_tmpdir/scmroot/golang-github-uber-jaeger-lib'...
$ git fetch origin d61654bde4c3f4432658e606412ed5df1169b120:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-uber-jaeger-lib
 * [new ref]         d61654bde4c3f4432658e606412ed5df1169b120 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d61654b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild