#for future reference: this is detecting a soft refresh (needed to invalidate seen posts state in certain cases)

[transienturl]

:is([data-timeline="/v2/timeline/dashboard"], [data-timeline-id="/dashboard/following"], [data-timeline-id^="following-"]) :is(.I1C5C, .XKCjm, .iM0gm, .HPWUP, .gPQR5, .gG278, .GzZtE, .dzJuF, .HT4SV, .zNXsU, .pgfyp, .X4sMj, .fxR1V, .QiSmE, .GIEHd, .q1ZAL, .aVu3s, .FQkf4, .y8Hml, .Qq2kF, .y7ZcS, .S3E1Y, .gg0IL, .RkANE, .R2VSD, .rGuEh, .M4ozn, .pNyDU, .Jexdo, .HEmvO, .NRB1z, .veGhd, .sGELZ, .IO8lN, .Ax_5I, ._45C1, .qE7QX, .PenwM, .Qihwb, .BGh2j, .VE_M2, .n4if2, .DqHCa, .uzQXY, .leVy7, .yCNr1, .X2bNy, .n3ka2, .xMd0G, ._72ef2, .XuT0g, .Rn2ZH, .UH33k, .v4Qva, .HaeOc, .c7xit, .Jslv2, .o1SJL, .WEIv6, .PuLtZ, .UPJCY, .qb7cY, .oX7Oa, .cfBaP, .As9E4, .Yunii, .EatnB, .p3LhK, .q9Ryt, .skjTR, .mXiaF):has(~ div [tabindex="-1"][data-id]) > .LQ3tN

If you went back in time to when I started contributing to xkit, told me we'd be generating this selector string someday, and asked me what it did...