$ git clone -n https://src.fedoraproject.org/rpms/libgravatar.git /var/lib/mock/f40-build-1239563-22917/root/chroot_tmpdir/scmroot/libgravatar
Cloning into '/var/lib/mock/f40-build-1239563-22917/root/chroot_tmpdir/scmroot/libgravatar'...
$ git fetch origin 1d61772aa38e41d5be0cd35b0f4fa4d1bfc073fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libgravatar
 * [new ref]         1d61772aa38e41d5be0cd35b0f4fa4d1bfc073fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d61772 24.05.0